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The newest DESI Legacy Imaging Surveys map covers three-quarters of the sky and catalogs nearly four billion objects. This publicly-available database contains stars, galaxies, supernovae, gravitational lenses, and much more.

Astronomers have used the MeerKAT radio telescope to detect hydrogen gas billions of light-years away from us — from a period when the cosmos was billions of years younger than its current age of 13.8 billion years. The research may provide astronomers with a new way of mapping the large-scale structure of the universe . The technique would rely on charting out where hydrogen, the universe's lightest and most abundant element, is located across the cosmos. It's known as hydrogen intensity mapping. Neutral hydrogen emits a faint radio signal that astronomers call the 21-centimeter line. As the…

The Sloan Digital Sky Survey (SDSS) has officially launched its twentieth data release (DR20), featuring updated data from multiple observations projects.

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 — a brilliant white point. What we're seeing is sunlight reflected by its…

NASA will host a virtual webinar at 2 p.m. on Friday, Oct. 2, titled “The RS-25 Engine and the Future of Artemis Missions: An Accessible Webinar for the Blind and Low-Vision Community.” This webinar is open to the public, however it is tailored specifically for a blind and low-vision audience. The webinar will last about two hours and include […]

Blue Origin will design and launch the Mars Telecommunications Orbiter by the end of 2028.

Scientists are closer than ever before to understanding how stars forge the elements that comprise our planet, bodies and pretty much everything else around us — and they're gaining a clearer picture of where star explosions fit into the story. New research reported in two different papers looks at how stars forge elements as they explode and how these supernova explosions spread those elements — and other elements stars have forged during their lifetimes — throughout the cosmos. Astronomers have been studying the bright supernova deaths of massive stars for centuries, but they still don't…

"Let me be clear: America is not only welcome—we want you there."

Pulsar Timing Arrays have been used to observe the background of gravitational waves in our galaxy. We aren't certain of their origin, but a new study shows a strong source could be early supermassive giants known as dark stars.

Spacesuit cleaning, exercise research, and cargo operations wrapped up the week aboard the International Space Station. The Expedition 75 crew members also practiced an emergency drill to ensure familiarity with medical operations in weightlessness.