This first light, as it's called, shows that all of the spacecraft's systems are working just as expected. "Based on the ...

We often focus on space observatories that peer beyond Earth. But the vast majority of satellites stare right back at us.

SPHEREx will begin routine science operations in late April, NASA said. At that time, the space telescope will begin taking ...

NASA's Webb telescope has captured pictures of the asteroid that caused a stir earlier this year when it topped Earth's hit ...

Just about everyone has heard of NASA’s Hubble Space Telescope — not too surprising considering that it has been with us for ...

NASA's SPHEREx (short for Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer) has ...

The space observatory can effectively peer back in time to the beginning of a mysterious era called Cosmic Dawn, or the first few hundred million years after the big bang when the first galaxies ...

Europe's star-mapping Gaia space observatory has entered its retirement orbit, after gathering valuable cosmic data for more ...

The final messages sent to Gaia will continue to be carried out into space as the observatory sleeps, and as data from it ...