The “dark energy” field that has fueled the expansion has been weakening over the past 4 billion to 5 billion years, new data shows.

NASA’s newest space telescope rocketed into orbit Tuesday to map the entire sky like never before — a sweeping look at hundreds of millions of galaxies and their shared cosmic glow since the beginning ...

Starliner astronauts Suni Williams and Butch Wilmore, who were stranded at the International Space Station for nine months, ...

Astronauts Suni Williams and Butch Wilmore, who have been stranded at the International Space Station for nine months, closed ...

The SPHEREx telescope will create the most colorful map of the cosmos, while the four satellites of the PUNCH mission track ...

The telescope will map the sky in 102 infrared colors, and the data it collects will shed light on the origins of the ...

NASA’s newest space telescope, SPHEREx, has successfully launched aboard a SpaceX Falcon 9 rocket, setting off on a ...

The head of Poland’s space agency was fired over a bungled response to SpaceX debris falling over Polish territory.

Plus: Gene therapy with bioengineered blood cells, a possible quantum computing milestone, a new space telescope, how to not ...

The telescope will capture a three-dimensional map of the universe, collecting data on more than 450 million galaxies and over 100 million stars ...

VIAVI Solutions announced its contribution to NASA’s Spectro-Photometer for the History of the Universe, Epoch of ...

Spherex (the Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer) will survey ...