Pioneer 10 holds the titles for many “firsts”: It was NASA’s first mission to the outer planets, the first spacecraft to fly beyond Mars, the first to traverse the asteroid belt, and the first to fly past Jupiter. It was also the first spacecraft placed on a trajectory to escape the solar system into interstellarContinue reading "June 13, 1983: Pioneer 10 leaves solar system"

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Looking for a sky event this week? Check out our full Sky This Week column.  June 12: The Moon meets Mars Turn your telescope toward southern Pisces this morning, where Saturn outshines any of the stars in this part of the sky. This is where Comet 220P/McNaught recently underwent an outburst, quickly brightening from 18th magnitude toContinue reading "The Sky Today on Saturday, June 13: Catch Comet 220P/McNaught"

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📷 Mark Johnston from Scottsdale, Arizona A line of filaments march toward the limb of the Sun, which itself is bedecked with multiple prominences in this Hα image. Both phenomena are made of loops and tendrils of plasma that arch off the surface of the Sun; their varying appearance depends on the viewing geometry. TheContinue reading "Prominent filaments"

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On June 12, 2021, Nova Herculis 2021 (V1674 Herculis) erupted, and was discovered by amateur astronomer Seiji Ueda of Japan. The white dwarf quickly became visible to the naked eye, surging to 10,000 times brighter than it originally had been. Its speed was unprecedented: V1674 Herculis faded from that peak brightness in just over oneContinue reading "June 12, 2021: Seiji Ueda discovers Nova Herculis 2021"

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Looking for a sky event this week? Check out our full Sky This Week column.  June 11: Point to the Polarissima Cluster We’re interested in the early-morning sky today as the waning crescent Moon joins up with Mars in Aries. Now just 11% lit, the Moon sits almost directly above the Red Planet as they rise. AboveContinue reading "The Sky Today on Friday, June 12: The Moon meets Mars"

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Friday, June 12The Moon passes 6° north of Mars at 5 P.M. EDT. You can catch the pair in the early-morning sky today (see The Sky Today on Friday, June 12) or tomorrow (June 13) before dawn, when they will stand about 8° above the eastern horizon an hour before sunrise, with the Moon toContinue reading "The Sky This Week from June 12 to 19: A daytime occultation of Venus"

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In Steven Spielberg’s Disclosure Day, opening tomorrow, protagonists race across the globe to expose a decades-long government cover-up and reveal to the world that extraterrestrial life is real. It’s a question Spielberg has been asking since his 1977 Close Encounters of the Third Kind: How would the knowledge of extraterrestrial intelligence change us? Spielberg makesContinue reading "The real disclosure day: The protocols for announcing extraterrestrial intelligence"

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Born in 1888, artist and illustrator Chesley Bonestell became famous for his realistic paintings of space. His work spanned decades and many formats and publications; perhaps most influential was his collaboration with Wernher von Brain on the 1952–54 Collier’s series, “Man Will Conquer Space Soon!” By making the stuff of science fiction seem achievable, his artwork helpedContinue reading "June 11, 1986: Chesley Bonestell dies"

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Looking for a sky event this week? Check out our full Sky This Week column.  June 10: The Moon shines with Saturn Look north after dark this evening to find the Little Dipper standing on its handle, its cup high over the horizon. The star at the end of that handle is Polaris, the North Star, markingContinue reading "The Sky Today on Thursday, June 11: Point to the Polarissima Cluster"

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There is a pattern found in nature. It is indeed the largest pattern there is. It is so vast that it spans the universe, filling up its observable volume. The pattern is made of individual units in the same way your body is made of cells — if each of your cells were a galaxyContinue reading "Untangling the cosmic web"

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Eugene Parker, pioneer of theoretical solar and plasma astrophysics, was born June 10, 1927. Parker revolutionized the field of heliophysics, notably by first proposing the existence of the solar wind — a stream of charged particles ejected from the Sun — in 1958. His theory was confirmed by Mariner II in 1962. Among many otherContinue reading "June 10, 1927: The birth of Eugene Parker"

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Looking for a sky event this week? Check out our full Sky This Week column.  June 9: Bright planets’ conjunction The Moon passes 6° due north of Saturn at 8 A.M. EDT; an hour before dawn, the pair is high in the eastern sky, perfect for early risers to enjoy.  Saturn is the brightest point of lightContinue reading "The Sky Today on Wednesday, June 10: The Moon shines with Saturn"

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Emmanuel Delgadillo from Jalisco, Mexico The Eagle Nebula (M16) is well-known for its dense star-forming pillars of gas and dust — including those in the famed Hubble Space Telescope’s “Fingers of Creation” image. It lies roughly 5,000 light-years away in Serpens. This photographer combined over 14 hours of exposure taken with Hα/OIII and SII/OIII dual-bandContinue reading "The Eagle’s lair"

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When NASA added a low Earth orbit test flight to the Artemis program in February, pushing the lunar landing from Artemis 3 to Artemis 4, it left the details sparse. On Tuesday, the agency filled them in. At a press conference, NASA named the four-person crew for Artemis 3, a 2027 Earth-orbit test flight thatContinue reading "Meet the astronauts flying on Artemis 3"

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NASA has ended its attempts to reconnect with the Mars Atmosphere and Volatile EvolutioN (MAVEN) spacecraft and begun decommissioning the orbiter, closing the book on a mission that spent over a decade studying how Mars lost its atmosphere. At a June 3 media conference, NASA officials announced that an anomaly review board — which wasContinue reading "NASA fails to reestablish contact, decommissions MAVEN"

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Celestron Nature DX ED 10x42mm Roof Binoculars CelestronTorrance, California Celestron Nature DX ED 10x42mm Roof Binoculars feature extra-low dispersion objective lenses and BaK-4 prisms, assuring proper color without fringing. All lenses are fully multicoated. The binoculars have a true field of view of 5.9° and can focus as close as 6.5 feet (2 meters). WeighingContinue reading "Kickstart summer with these new astronomy products"

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In early 1987, a team led by MIT’s Jacqueline Hewitt was imaging radio-emitting objects with the Very Large Array radio telescope as part of a gravitational lens survey. The unusual appearance of object MG1131+0456 – an oval with elongated bright spots at the ends – led to further investigation, and the researchers eventually concluded itContinue reading "June 9, 1988: First image of an Einstein ring"

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Looking for a sky event this week? Check out our full Sky This Week column.  June 8: Venus and Jupiter close in Venus and Jupiter have now inched closer together and stand 1.6° apart in the evening sky; the former officially passed due north of the latter at 8 A.M. EDT this morning.  Compare the view thisContinue reading "The Sky Today on Tuesday, June 9: Bright planets’ conjunction"

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Jeffrey Horne, taken from Nashville, Tennessee The Rosette Nebula (NGC 2237–9) is a vast star-forming complex about 5,000 light-years away in Monoceros. This portrait combines 200⅓ hours of SHO data taken from Jan. 1 to April 12, 2026, with a 5-inch f/5.6 scope. The extremely deep exposure reveals myriad delicate tendrils within the nebula, whereContinue reading "Budding stars"

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Rocket launches this week According to tracking from Next SpaceFlight, Chinese aerospace firm Landspace’s ZhuQue-2E Block 2 is scheduled to lift off from the Jiuquan Satellite Launch Center in China at 4:20 a.m. EST on Tuesday, June 9. The ZhuQue-2E is a medium-lift rocket powered by liquid oxygen and methane — the first methane-fueled vehicleContinue reading "SpaceX and Rocket Lab set for liftoff this week"

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