The mission—the Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer; or SPHEREx—will ...

For a brief window, Asteroid 2024 YR4 looked like a planetary hazard in the making. At up to 90 meters (295 feet) in diameter ...

There is a brutal curiosity on the part of human beings to know everything that happens beyond our planetary border, ...

The first stars after the Big Bang were probably huge and short-lived, but Population III has not yet been found. This could ...

The $488-million mission is set to map the sky in 102 colors of light, probing cosmic inflation, galactic ices, and the history of the universe’s first light.

The planet WASP-121b is extreme. Its a gas giant almost twice as big as Jupiter orbiting extremely close to its star50 times ...

A private lunar lander carrying a drill, vacuum and other experiments for NASA touched down on the moon Sunday.

The James Webb Space Telescope's Near-Infrared Camera (NIRCam) reveals a stunning view of star-forming region Sagittarius C ...

NASA/ESA/CSA James Webb Space Telescope's NIRCam (Near-Infrared Camera) and MIRI (Mid-Infrared Instrument) captured amazing ...

With measurement errors negated, what remains is the real and exciting possibility we have misunderstood the universe,” said Adam Riess, professor of physics and astronomy at Johns Hopkins University.

"The operations work at STScI, NASA's Goddard Space Flight Center, and other NASA contractors is funded by the operational ...

More than 38,000 asteroids are known to be in Earth’s vicinity, including 973 “planet killers” of more than half a mile in diameter. Most pose no risk. But NASA estimates that only about 43% of nearby ...