Euclid space telescope observations of ancient globular cluster NGC 6397 reveal a subtle gap in brightness distribution of red dwarf stars.

A new Keck Observatory study indicates that giant planets can spin faster than more massive brown dwarfs, revealing important clues about how planetary systems form and evolve. Astronomers have long suspected that a planet’s mass may be linked to how quickly it spins. In our solar system, Jupiter and Saturn rotate especially fast, each completing [...]

NASA’s Roman Telescope could reveal 100,000 hidden worlds and rewrite what we know about planets across the Milky Way. NASA’s Nancy Grace Roman Space Telescope is expected to dramatically expand humanity’s catalog of worlds beyond our solar system. Known as exoplanets, these distant planets number nearly 6,300 discoveries so far through NASA missions and other [...]

A star caught feeding on its companion has finally revealed the source of some of the galaxy’s most mysterious repeating signals. An international research team led by scientists at the University of Sydney has uncovered the strongest evidence yet explaining the origin of a puzzling type of cosmic signal. Their work has also revealed a [...]

JWST found a black hole hiding in a galaxy more than 10 billion light-years away from Earth, and used a cosmic magnifying glass to determine its mass.

Radio astronomers have decoded a peculiar repeating radio signal from deep space, tracing it to a vampiric binary star system.

A chemical engineer noticed that the spectra of the hazy atmosphere of mini-Neptune planets looked like the soot produced by combustion engines.

Northern lights are projected across the Northern U.S. and Europe tonight as Earth gets hit by a strong solar eruption.

Few are as delighted by the pending market debut as the vibrant community of space enthusiasts who want to push discovery of the final frontier.

Gwynne Shotwell, the president and chief operating officer, is the adult-in-the-room foil to Mr. Musk as SpaceX prepares for a blockbuster initial public offering.

Gwynne Shotwell, the president and chief operating officer, is the adult-in-the-room foil to Mr. Musk as SpaceX prepares for a blockbuster initial public offering.

New observations suggest the supermassive black hole at the Milky Way’s core is blowing gas away from the central behemoth.

A rainbow blanket of patchwork colors sprawls across South Africa in this new composite image created using data from NASA's latest Earth-observing mission.

One of the earliest recorded eclipses is found in the Shijing, a collection of ancient poetry whose compilation is credited to Confucius. The eclipse in question occurred during the Zhou dynasty. Though the exact date is uncertain, some astronomers have pointed to the total eclipse of June 4, 781 B.C.E. (though this would have only been aContinue reading "June 4, 781 B.C.E: A great eclipse in China"

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A rare meteorite recovered from the Sahara Desert contains evidence of a long-lost moon-size world that existed just a few million years after the solar system formed.

The space agency announced that the MAVEN spacecraft, which has circled Mars for more than a decade, is being decommissioned.

The $135 share price means Elon Musk’s rocket maker is poised to exceed the 2019 initial public offering of Saudi Aramco in both valuation and money raised.

New research suggests primordial black holes born during the Big Bang could live much longer than previously estimated — long enough to become energy-spewing white holes.

NASA engineers completed their final inspection of the Roman telescope's primary mirror and are now preparing to ship the telescope to its Florida launch site.

Scientists propose that a moon base could act as an isolated first line of biological defense against extraterrestrial samples that might be harmful to Earth's biosphere.