Astronomy

NASA’s formidable gamma-ray burst hunter is doomed to soon reenter Earth’s atmosphere, leaving a glaring gap in our view of the high-energy sky

It’s unclear what these objects actually are, but evidence for them has been detected by NASA’s Chandra space telescope for years

The newfound star S301 orbits the Milky Way’s supermassive black hole so closely that its view of the heavens gets twisted

The strange structure appears to have formed recently, but nobody can explain exactly why

After a flawless launch, the Nancy Grace Roman Space Telescope is on a mission to solve some of the universe’s biggest mysteries

The Nancy Grace Roman Telescope will probe dark matter and dark energy, discover exoplanets and study stars

Seven Rasmussen, an astrobiologist and author of the new book Cloudy with a Chance of Starships, gives readers a tour of the astonishing science behind modern searches for alien life

NASA’s Roman Space Telescope will open a whole new window on the cosmos. Here are 10 things it’s likely to show us

NASA’s newest major observatory will include the most advanced planet-imaging tech ever flown in space. Here’s how it works

Astronomers are lining up to leverage NASA’s soon-to-launch Nancy Grace Roman Space Telescope, which boasts capabilities unlike any previous off-world observatory

The more scientists try to understand dark energy, the more its mysteries seem to grow. NASA’s newest space telescope is custom-built to crack the case

On the 20th anniversary of Pluto’s infamous demotion, Mike “Pluto Killer” Brown explains why any reversal of that decision would be driven more by nostalgia than science