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The Draconids, an unpredictable shower that can bring hundreds of meteors per minute, has begun

The Draconids, one of the year's most unpredictable meteor showers, will peak this week. Although only a few "shooting stars" are expected, the shower has a history of producing spectacular meteor storms with little warning.

The Draconid meteor shower takes place Oct. 6-10 each year, peaking on Oct. 8-9, when around 10 "shooting stars" per hour are expected. Whereas most meteor showers are best seen after midnight or during the dark hours before dawn, the best time to view the Draconids is in the evening, according to Timeanddate.com, making it one of the more convenient meteor showers of the year. Just after dark Thursday (Oct. 8) will be the best time to look.

The Draconids are different from most other showers because their radiant β€” the point from which their meteors appear to originate β€” is in the constellation Draco, the Dragon, which is highest in the sky in the evening. It's also circumpolar in much of the Northern Hemisphere, so it never sets below the horizon. However, there's no need to stare directly at Draco, because meteors can appear anywhere in the sky.

This year, the Draconid meteor shower peaks at the perfect time of the month for dark skies. Because the new moon occurs Saturday (Oct. 10), there will be no significant moonlight when the Draconids reach maximum activity.

However, the Draconids are notoriously unpredictable; while just a handful of meteors per hour are expected, the shower can sometimes produce huge meteor storms. For example, during the Draconids' peak in 1933, Europe saw 500 meteors per minute, according to NASA, and during the 1946 peak, 50 to 100 meteors were seen per minute in the U.S.

The source of the Draconids is Comet 21P/Giacobini-Zinner, which was discovered in 1900 and orbits the sun every 6.6 years. It was last in the inner solar system in 2025 and will return in 2031.

Each October, Earth passes through streams of dust and debris left along the comet's orbit. When those tiny particles strike Earth's atmosphere, they heat up and vaporize, creating streaks of light in the night sky.

Most observers will probably see only a few Draconids this year, but with a meteor shower this unpredictable, it's always worth looking up. The best way to see the Draconids is with the naked eye, but a good pair of stargazing binoculars or a nice backyard telescope will help you enjoy the feast of fall skywatching events on the horizon. Amazon has great deals on skywatching gear this week, so it's a perfect time to get involved.

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Jupiter will disappear behind the moon in a once-in-a-decade alignment tomorrow

You may have watched the moon block out the sun during a solar eclipse, but have you ever seen it do that to a planet? Early Tuesday (Oct. 6) morning, skywatchers across much of eastern North America will have an opportunity to watch a crescent moon pass directly in front of Jupiter. The rare alignment won't happen again for 11 years.

During the event, known as a lunar occultation, Jupiter will disappear behind the moon for up to about an hour before suddenly reappearing. The occultation will be visible before dawn from much of the eastern and central U.S., Canada and the Caribbean, while parts of Africa will experience the event during daylight, according to In-The-Sky.org.

The moon will be a beautiful waning crescent, just 20% illuminated, and Jupiter will shine brightly alongside it. The pair will rise together in the east early Tuesday morning and gradually appear to move closer as the moon travels eastward against the background stars.

When the occultation begins, Jupiter will remain hidden behind the moon for roughly an hour. No telescope will be needed to watch Jupiter disappear and reappear. However, a pair of binoculars or a small telescope will make the event much more dramatic.

Through a telescope, Jupiter will look like a tiny disc rather than a point of light and will take about a minute to disappear completely behind the moon. An easy way to photograph the event is to use a smart telescope to image the moon. (Here's everything you need to know about lunar photography).

Below are the times when Jupiter will disappear and reappear in 10 major cities Tuesday morning, according to the International Occultation Timing Association.

  • Chicago: 3:22-4:17 a.m. CDT
  • Atlanta: 4:15-5:17 a.m. EDT
  • Detroit: 4:16-5:20 a.m. EDT
  • Miami: 4:20-5:09 a.m. EDT
  • Washington, D.C.: 4:20-5:24 a.m. EDT
  • Philadelphia: 4:22-5:26 a.m. EDT
  • New York: 4:23-5:27 a.m. EDT
  • Toronto: 4:25-5:22 a.m. EDT
  • Boston: 4:26-5:30 a.m. EDT
  • Montreal: 4:30-5:26 a.m. EDT

Outside the occultation path, Jupiter won't disappear at all. Instead, it will appear to be skimmed by the crescent moon β€” still a potentially spectacular sight that could produce some amazing photos. From across much of the world, the crescent moon and Jupiter will appear exceptionally close together.

The next lunar occultation of Jupiter visible from North America will occur on Nov. 27, 2037, according to When The Curves Line Up.

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Haunting Hubble telescope image captures cosmic cycle of destruction and creation —‬ Space photo of the week

Quick facts

What it is: The nebula LHA 120-N44

Where it is: 160,000 light-years away, in the constellation Dorado

When it was shared: Sept. 3, 2026

It looks like a gigantic hole punched through a cloud, but this spectacular new image from the Hubble Space Telescope captures something more complicated: a cosmic cycle of destruction and creation, with one generation of stars tearing apart its birthplace while simultaneously helping a new generation form.

LHA 120-N44 (N44, for short) is a nebula that lies about 160,000 light-years away in the Large Magellanic Cloud, a small galaxy that orbits the Milky Way. From Earth, it appears in the constellation Dorado. This enormous, empty-looking region measures roughly 210 by 140 light-years. To put that into context, consider that Alpha Centauri, the closest star system to ours, is a mere 4.4 light-years distant. Thanks to that giant, hole-like appearance, this nebula is known as a superbubble, a cavity carved out by a cluster of hot, massive stars near its center.

Those stars are bent on destruction. Just like our star's solar wind, which creates auroras on Earth and defines the extent of the solar system, these stars' powerful winds blast material into space. Meanwhile, the most massive of these stars eventually explode as supernovas, pushing even more gas aside. The collective radiation from both these old and young stars carves the nebula's giant cavity.

So what happened to that expelled gas? Most of it has been pushed outward and compressed into a dense shell of gas and dust surrounding the superbubble. Within that shell, new stars are forming β€ͺ—‬ so the same massive stars that destroy the gas cloud that created them also may help to produce their replacements.

This is known as "stellar feedback" β€” when massive stars heat, ionize and disperse the gas and dust around them, making star formation impossible in their vicinity. Meanwhile, their winds can squeeze neighboring gas clouds until they become dense enough to collapse under their own gravity and make new stars.

This Hubble image of N44 contains almost half a million stars, including those in the nebula and some lying along the same line of sight. About 30,000 of them are young stars yet to fuse hydrogen in their cores β€” the reaction that powers stars like the sun. With so many young protostars not yet hot and dense enough to become full-fledged main-sequence stars, N44 gives astronomers a rare opportunity to attempt an answer to what may seem like a very simple question: how long does it take to make a star?

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I've chased the 'false dawn' for years β€” this is the week to find and photograph it

Some stargazing feels like you know exactly what you are looking for, but you're still slightly unsure whether you are actually seeing it. Zodiacal light β€” meaning "light from the circle of animals" β€” is often like that.

I have chased this so-called "false dawn" for years, and the first few minutes are always the same. I stare toward the horizon and wonder whether the sky is genuinely brighter there, or whether I am simply seeing distant light pollution, the first hint of morning twilight, or something my eyes have invented because I badly want to see it.

However, under a genuinely dark sky β€” and particularly in a long-exposure image β€” its cone shape becomes obvious.

Zodiacal light is enormous. It appears as a broad, softly glowing pyramid rising from the horizon. It can be fainter than the Milky Way and has no hard edges, which is precisely why it is so easy to overlook.

This week is a particularly good time to try because the new moon occurs on Sept. 10-11. With no moonlight interfering with the predawn sky, the main problems become familiar ones to any skywatcher: clouds, haze and artificial light.

The phenomenon itself could hardly be more epic. Zodiacal light is sunlight scattered by dust spread through the inner solar system, concentrated broadly around the plane in which the planets orbit. From Earth, we see that dusty structure edge-on along the ecliptic β€” the path through the sky followed by the sun, moon and planets. It's home, of course, to the 12 (actually 13) constellations of the zodiac β€” from Pisces the fish to Leo the lion. This is the circle of animals.

From the Northern Hemisphere around the September equinox, dust-hunting observers should look east before morning twilight, when the ecliptic rises steeply away from the horizon, and the faint glow becomes easier to separate from the murk below. It will reach about 30 to 40 degrees above the horizon.

Zodiacal light is the solar system itself made faintly visible β€” and one of the most subtle and strangest sky sights of all.

What's happening and when to look

Skywatching map showing the northern hemisphere looking east 2 hours before sunrise.

Zodiacal light is a faint pillar of brightness stretching upward from the horizon. (Image credit: NASA/JPL-Caltech)

For observers at mid-northern latitudes, September mornings offer one of the year's best windows for spotting the "false dawn" β€” but it's not easy to see. The essential ingredients are an unobstructed eastern horizon (preferably over the ocean or a large body of water) and no light pollution. You'll need to start looking before astronomical twilight begins rather than waiting until the sky is already visibly brightening, which means getting up very early in a very dark place.

Check the time astronomical twilight begins at your location and aim to be outside before then, giving your eyes at least 20 to 30 minutes to adapt to the darkness. The zodiacal light should appear as a broad triangular glow, widest and brightest close to the horizon and narrowing as it climbs.

It's easy to confuse it with a distant town, but artificial skyglow tends to form a rounded dome above one location on the horizon. In contrast, zodiacal light reaches diagonally β€” or almost vertically upward β€” along the ecliptic.

Give your eyes time and save up that one vital ingredient, a vanishing human trait any skywatcher must constantly nurture β€” patience. Zodiacal light is not something you can walk outside and instantly see. It comes only to those who work for it.

How and when I'm photographing it

Zodiacal light rises over the Badlands of South Dakota.

Zodiacal light is a faint pillar of brightness stretching upward from the horizon. (Image credit: Mike Hollingshead via Getty Images)

A little like a faint aurora, a camera almost always detects zodiacal light before your eyes become completely convinced. The easiest way is to use a tripod and a wide-angle lens, preferably something around 14-24mm, compose with plenty of eastern sky and include a simple foreground to make the triangular shape obvious. A starting point of around f/2.8, ISO 1600, and an exposure of roughly 10-20 seconds usually puts you in useful territory, though sky brightness and lens speed change everything.

Shoot RAW, focus manually on a bright star and capture a series of images. Then, once you've photographed it, try to stop looking at the screen β€” the entire point is to see it with your own eyes.

Stargazer's corner: September 11-18, 2026

With a new moon on Sept. 10, this week sees a run of dark evenings before our natural satellite gradually returns. On Sept. 14, look shortly after sunset for a slender waxing crescent moon beside Venus, extremely low in the western twilight. By Sept. 16-17, the moon moves on towards Antares, a reddish star at the heart of Scorpius. Then Sept. 18 brings a first quarter moon (perfect for exploring with binoculars or a small telescope) and Venus at the greatest brilliancy of its current apparition as the "Evening Star."

Constellation of the week: Orion

night sky map showing the constellation Orion in the night sky.

Orion, "The Hunter," is now visible in the east before sunrise. (Image credit: E. Slawik/NOIRLab/NSF/AURA/M. Zamani, background added in Canva Pro)

Orion is normally thought of as a winter constellation, so September seems an odd time to go looking for it. However, if you're venturing out to an extremely dark place to look for zodiacal light, you're going to be staring Orion in the face. In September, the Hunter is in the eastern sky before dawn, where its stars sit along the same general strip of sky occupied by the zodiacal light. Its famous belt stars will be up, as will be bright Sirius, below. This is one of the pleasures of observing before sunrise. The sky is effectively showing you a preview of another season. The constellations climbing in the September dawn are the ones Earth will face during winter evenings a few months from now. Jupiter and Mars will also be visible β€” right on the ecliptic where you'll also β€” hopefully β€” spy the "false dawn".

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A star is exploding 45 million light-years away β€” here's how you can see it

An extraordinary exploding star has been spotted in a distant galaxy, and astrophotographers are racing to capture it before it fades from view.

The supernova, called SN 2026aaiv, was first seen by the ATLAS survey on Sept. 1 in NGC 7331 (also known as Caldwell 30), a spiral galaxy about 45 million light-years away in the constellation Pegasus, visible in the Northern Hemisphere and at mid-latitudes in the Southern Hemisphere.

That makes this supernova a prime target for amateur astrophotographers and astronomers worldwide to capture an image of this rare event.

Hundreds of astrophotographers have already captured it, including Andrew McCarthy, who posted his image on Instagram on Sept. 7 with the message, "As luck would have it, I happened to be in the middle of a massive project with this galaxy, and caught the supernova." He shot four hours of data, two before and two after the supernova, as part of a 100-hour project. "The final image will be EPIC!" he said.

Tom Masterson, Mountain Operations Manager at the Mount Wilson Observatory, also captured it on Sept. 10 using a 60-inch telescope.

What you'll need to find SN 2026aaiv

At magnitude 15.7 on Sept. 11, 2026, SN 2026aaiv is relatively dim, but still brightening. Many of the images posted online were captured with large professional telescopes or remote telescopes in dark regions. However, you can find and photograph SN 2026aaiv with relatively modest equipment. You'll need a telescope or large binoculars to see NGC 7331 (at magnitude 10) at all, but the supernova is dramatically more challenging visually. To have a chance of seeing SN 2026aaiv, a large telescope is recommended (observers have confirmed seeing it using a 14-inch Schmidt-Cassegrain telescope). Use the averted vision technique: look slightly to the side of the galaxy's core so the eye's more light-sensitive rod cells can reveal faint detail.

The easiest way is to use a smart telescope, which can quickly find and image the host galaxy NGC 7331. According to Seestar (Official ZWO Group) on Facebook, users of the Seestar S50 have managed to image the SN 2026aaiv with about two hours of 10-second exposures (the default mode).

How to find SN 2026aaiv

night sky graphic map showing the great square of pegasus

SN 2026aaiv can be found in NGC 7331, close to the Great Square of Pegasus, right after dark in the east from the Northern Hemisphere. (Image credit: Starry Night)

SN 2026aaiv has the coordinates RA 22h 37m 05.618s, Dec +34Β° 24β€² 35.37β€³. From the Northern Hemisphere, turn toward the east after dark, and you'll see four large, bright stars rising in a vast diamond shape. This is the Great Square of Pegasus, part of the constellation Pegasus. At the northwestern corner of the Great Square is Scheat. Just above it, outside the square, is a dimmer star called Matar. NGC 7331 is close by. In light-polluted skies, only the central core of the galaxy is visible, according to NASA. The galaxy, which we see partially edge-on, has spectacular spiral arms that swirl around a bright central region.

What we know about SN 2026aaiv

SN 2026aaiv is a Type Ia supernova, a catastrophic explosion that occurs when a white dwarf in a binary star system gains enough material from its companion to trigger a runaway thermonuclear reaction, destroying the white dwarf. Remarkably, another Type Ia supernova, SN 2025rbs, was found in the same galaxy on July 14, 2025.

NGC 7331, imaged by the Hubble Space Telescope in 2018, was first found in 1784 by British astronomer William Herschel, who cataloged over 2,500 deep-sky objects and discovered Uranus and its two largest moons. NGC 7331 is similar in size, shape and mass to the Milky Way.

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A Harvest Moon with 5 planets on the side: September is the best month for stargazing, β€ͺand this year is extra special

There may be no better month to get outside and look at the stars than September, when warm evenings meet rapidly lengthening nights, the Milky Way remains visible overhead, and the changing seasons can increase your chances of seeing the northern lights.

For stargazers in the Northern Hemisphere, summer presents an obvious problem: Darkness arrives late. By September, however, sunset is getting noticeably earlier each evening, providing far more time under dark skies with mild weather in most locations. Days can still feel summery, while nights tend to remain pleasant enough to spend hours outside with a pair of stargazing binoculars or a good backyard telescope. The only challenge is finding a clear sky.

The balance between daylight and darkness changes particularly quickly around the fall equinox, which occurs on Sept. 22 this year. That's when the sun crosses Earth's equator, bringing day and night close to equal in length around the world. From then on, nights become longer than days across the Northern Hemisphere until the winter solstice on Dec. 21.

As an occasional bonus, auroras tend to occur more frequently around the equinoxes. During this time, the orientation of Earth's magnetic field creates favorable conditions for interactions with the solar wind (the cause of auroras), but there are never any guarantees.

September stargazing highlights

This month, there's plenty happening overhead.

All five planets visible to the naked eye can be seen during September, although not simultaneously; Venus and Mercury are visible in the evening, while Mars and Jupiter come out in the morning. Saturn is visible for much of the night, while Neptune reaches opposition on Sept. 26, meaning it is on the opposite side of Earth as the sun, offering the closest and most direct viewing opportunity.

The moon also passes close to several bright planets during the month (it passed Jupiter before dawn on Sept. 8 and will nudge Venus after dark on Sept. 13 and 14), while the full Harvest Moon rises on Sept. 26, with Saturn following after it minutes later.

September is also one of the last good opportunities of the year for Northern Hemisphere observers to see the brightest parts of the Milky Way in the evening. The star-rich regions of Sagittarius and Scorpius are sinking toward the western horizon, while the iconic Great Square of Pegasus rises in the East to announce the arrival of the autumn sky.

With all those cosmic treats on tap, this month certainly hits the sweet spot for stargazers.

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James Webb telescope finds one of our galaxy's rarest stars inside the 'Treasure Chest' globule β€” Space photo of the week

Orange gas floats in deep space.

NASA's James Webb Space Telescope captured the "Treasure Chest," a cometary globule in the star-forming Carina Nebula, on Aug. 6, 2026 (Image credit: ESA/Webb, NASA & CSA, M. Reiter; Acknowledgment: M. H. Γ–zsaraΓ§)
Quick facts

What it is: The Treasure Chest, a cometary globule in the Carina Nebula star-forming region

Where it is: 7,500 light-years away, in the constellation Carina (the Keel)

When it was shared: Aug. 21, 2026

It looks like a gigantic treasure chest left open among the stars β€” but instead of gold and jewels, this strange cosmic structure contains dozens of newborn suns. This new image from the James Webb Space Telescope (JWST) reveals the aptly named Treasure Chest, a colorful cloud of gas and dust in the Carina Nebula, one of the Milky Way's richest star-forming regions.

Located about 7,500 light-years away in the Southern Hemisphere constellation Carina, the nebula stretches roughly 260 light-years across and contains some of the most massive stars in our galaxy, as well as tens of thousands of young protostars. It's also home to the "Cosmic Cliffs," which appeared in JWST's first collection of science images, released in 2022.

The Treasure Chest is a cometary globule, an isolated cloud with a dense, dark head and a sweeping tail. Although such objects are named for their resemblance to comets, this one looks more like a wooden chest with its lid propped open and light spilling from inside.

JWST's Near-Infrared Camera reveals the source of that glow: a compact cluster of about 70 young stars embedded in the dust. The most massive one is a rare O-type star β€” extremely large, bright, and short-lived stars β€” measuring roughly 19 times as massive as the sun.

Astronomers estimate that the cluster is around 1.3 million years old, although earlier estimates suggested it could be as young as 100,000 years. Many of its stars are still surrounded by the gas and dust from which they were born. Over time, radiation from the cluster's stars will disperse that material, exposing stars that are currently hidden.

The Treasure Chest's unusual shape is also influenced by something outside the JWST image. About 39 light-years away, as measured across the sky, is Eta Carinae, the most luminous object in the Carina Nebula. Eta Carinae famously underwent its "Great Eruption" in the 19th century, when it briefly became one of the brightest stars in Earth's night sky. The system contains at least two stars, including one about 100 times as massive as the sun and roughly 5 million times as luminous. Together with the nearby Trumpler 16 star cluster, its intense radiation and stellar winds are blasting away the Treasure Chest's less-dense gas and helping to sculpt the cloud into its distinctive shape.

The Treasure Chest won't always look like this. Radiation and winds from the young stars inside it, combined with the assault from massive stars nearby, will gradually erode the remaining gas and dust. Eventually, the cosmic chest will disappear, revealing its true jewels β€” the stars within it.

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Venus is becoming a thinner crescent β€” and that's when it finally starts making sense

Venus is something of a frustration for stargazers. It's the brightest planet and the easiest to see, while the sight of it close to a crescent moon is one of the most achingly beautiful sights in the sky. Yet it gives almost nothing away.

Mars has its reddish color. Saturn rewards even a small telescope with its spectacular rings. Jupiter has moons, belts and an obvious disk. Venus, meanwhile, spends months blazing away in twilight looking exactly like what people who do not stargaze assume a star should look like β€” a brilliant white point. What we're seeing is sunlight reflected by its global cloud cover, which in turn makes it impossible to see in any detail.

But every now and then, it does something revealing by becoming a crescent. That is when Venus, an inner planet relative to Earth, finally makes sense.

Put a small telescope on Venus this week and its appearance is completely different from the dazzling dot seen with the naked eye. This week, its disk will dim from 36% to 32% lit as it shrinks toward a thinner crescent as September progresses. At the same time, its apparent disk is getting larger because Venus is moving closer to Earth.

Those two changes are connected. Venus reached its greatest eastern elongation, about 46 degrees from the sun, on Aug. 15. It's now swinging around the inside of its smaller, faster orbit of the sun towards inferior conjunction on Oct. 24, when it will pass roughly between Earth and the sun, and be lost in the sun's glare. Before that, it will reach its peak β€” greatest brilliancy β€” in the evening sky on Sept. 18, shining at magnitude -4.8 while just 26% lit. That's the sweet spot, when its increasing angular size and decreasing crescent combine at their brightest, as seen from Earth (though its modeled visual brightness peaks a few days later, around Sept.22). After that, it becomes an increasingly dim crescent.

Seeing Venus as a crescent makes the geometry beautifully obvious. We are no longer looking across the solar system towards the brightly illuminated side of Venus. We are increasingly looking at the planet from behind, towards its night side, with sunlight catching only one edge.

It is almost the same idea as a crescent moon β€” except Venus is another world tens of millions of miles away. As it passes roughly between Earth and the sun on Oct. 24, it will be 0.27 AU away β€” equivalent to 25 million miles (40 million kilometers). At its farthest, Venus can be 162 million miles (261 million kilometers) from Earth.

The phases of Venus were historically important. When Galileo observed Venus through a telescope in the early 17th century, seeing it display a broad range of phases helped demolish the traditional Ptolemaic model in which Venus was supposed to orbit Earth in a way that could not produce the full sequence he observed.

Four centuries later, the same observation remains one of the simplest ways to understand our place in the solar system.

Venus becomes far more interesting when it stops looking its best through the naked eye and instead becomes a "wow" moment in a small telescope. As the "Evening Star" sinks lower into twilight, we're not just seeing a crescent β€” we're seeing a planet orbit the sun.

What's happening and when to look

composite image showing the moon and venus in the night sky over a lighthouse.

Β A crescent moon and Venus over a lighthouse. (Image credit: Richard Packwood via Getty Images)

Venus remains an evening object throughout September, but it is rapidly becoming more challenging from mid-northern latitudes. Look very low towards the west-southwest shortly after sunset, where it should be obvious because practically nothing else in the twilight comes close to its brilliance.

Do not search for Venus with a telescope or binoculars while the sun is still above the horizon. Wait until sunset and make sure the sun has disappeared before pointing optical equipment anywhere near the western sky.

Venus will move through Virgo during the coming days before a particularly attractive conjunction on Sept. 14, when a 16%-lit waxing crescent moon will pass extremely close to a 29%-lit Venus. Two crescents together.

How and when I'm watching it

Venus is one of those objects I prefer to revisit several times rather than observe once. A single look shows a crescent, but observing every week reveals movement.

I'll mostly use my small spotting scope in the front yard to look at Venus as a crescent this month, but if I'm short on time, I'll use some 10x50 binoculars, which can also reveal the phase. The trick is not to expect surface detail β€” just a clean geometric shape.

Atmospheric turbulence near the horizon can make Venus wobble and shimmer, but its phase usually cuts through.

Stargazer's corner: Sept. 4–10, 2026

close up view of saturn with sandy colored rings.

Saturn continues to brighten in the east after dark. (Image credit: SCIEPRO/SCIENCE PHOTO LIBRARY via Getty Images)

With the moon now past last quarter, the early evening sky is finally free from bright moonlight. It's an excellent opportunity to revisit the Milky Way, along with star clusters, nebulas and other deep-sky objects before autumn gradually takes over and its bright center slumps into the horizon. Before dawn, the waning crescent moon moves through Taurus, passing close to Mars on Sept. 6 in Gemini, while brilliant Venus continues to dominate the western twilight after sunset. The dazzling planet remains the unmistakable evening beacon, shining low above the west shortly after sunset. Saturn, meanwhile, continues to brighten in the east during the late evening, making this an increasingly good time to point binoculars or, better still, a small telescope toward the ringed planet.

Constellation of the week: Pisces

night sky map showing the location of Pisces in the sky.

Pisces, "The Fishes," is now visible in the south after dark. (Image credit: E. Slawik/NOIRLab/NSF/AURA/M. Zamani))

Pisces is easy to overlook. Its faint stars form two celestial fish joined by a long cord, creating a broad V-shape beneath the easy-to-find Great Square of Pegasus in the eastern evening sky after dark this month.

This week is a great time to find it because Neptune soon reaches opposition within Pisces, making the distant planet brighter than at any other time this year. Although Neptune needs binoculars or a telescope to spot it, learning the constellation

Pisces has been associated with mythology and water for thousands of years, but finding its subtle pattern also signals that the autumn constellations are beginning to take over the night sky.

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Something doesn't add up in the Chandelier Cluster, Hubble telescope finds β€” Space photo of the week

A cluster of brilliant white and golden stars shines in the darkness of space.

NGC 6723 is a globular cluster, an ancient inhabitant of the Milky Way galaxy. (Image credit: ESA/Hubble & NASA, A. Sarajedini, G. Piotto)
Quick facts

What it is: NGC 6723, the "Chandelier Cluster"

Where it is: 27,000 light-years away, in the constellation Sagittarius

When it was shared: June 26, 2026

In this single Hubble Space Telescope image, tens of thousands β€” possibly millions β€” of stars bound tightly by gravity sparkle as one. This is NGC 6723, a glittering globular cluster about 27,000 light-years away, in the constellation Sagittarius.

Also known as the Chandelier Cluster, this swarm of stars is one of about 150 known globular clusters that orbit in the halo of the Milky Way, though others may remain hidden behind thick cosmic dust or crowded star fields at the galaxy's bright core.

Globular clusters like NGC 6723 are among the most ancient structures in our galaxy. What baffles astronomers most is the age of the stars within them. These clusters often contain stars older than 10 billion years, with some dating back almost to the beginning of the universe itself 13.8 billion years ago. They likely formed early in the history of the Milky Way, billions of years before the thin disk of stars where the sun now orbits took shape.

It was once thought that all stars inside a globular cluster formed at the same time, from the same material, during a single burst of star formation. If that were true, the stars would have the same age and chemical composition.

However, Hubble's view demonstrates that this is not the case. The cluster is densely packed at the center, where many bright-blue stars appear concentrated, while orange stars are more prominent toward the edges. Blue stars are younger than orange stars, suggesting that globular clusters can have complex histories, with different populations of stars and subtle chemical differences among them.

Hubble first observed NGC 6723 in visible and near-infrared light as part of a major survey of 65 globular clusters in 2013. It found that massive stars sink toward the center of a cluster, while lower-mass stars drift outward. In 2013 and 2014, Hubble studied NGC 6723 to search for small chemical differences between stars and to measure the spread of ages of stars within the cluster. Two epochs were found, with the second burst of stars happening about 634 million years after the first.

One leading idea is that globular clusters formed when enormous gas clouds collapsed rapidly in the early universe. However, recent simulations also suggest that some globular clusters may be the surviving cores of ancient dwarf galaxies that were stripped of their outer stars by larger galaxies. Either way, they're a fossil remnant hinting at how galaxies evolve.

Globular clusters are not unique to the Milky Way. They are found around many kinds of galaxies, including spirals, giant ellipticals and dwarfs. The Andromeda galaxy, the nearest large spiral galaxy to the Milky Way, is estimated to host about 460 globular clusters, while the giant elliptical galaxy M87 contains roughly 15,000 globular clusters, according to NASA.

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Plan for Next Year's Total Solar Eclipse: August 2, 2027

The longest total solar eclipse visible from land until 2114 will sweep across Spain and North Africa on August 2, 2027. Here’s how to choose where to watch it.

The post Plan for Next Year's Total Solar Eclipse: August 2, 2027 appeared first on Sky & Telescope.

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