A NASA space telescope on a mission to map millions of galaxies has turned on its detectors for the first time, capturing ...

New observations of the cosmos show that the dark energy, a mysterious force that accelerates the expansion of the universe, ...

NASA's SPHEREx observatory has started capturing its initial images, paving the way for a comprehensive study of millions of ...

Mars may look like a dry and dusty world, but just beneath its surface lies one of the most surprising discoveries in ...

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

Radioisotope thermoelectric generators can turn heat into electricity using a principle called the Seebeck effect, discovered ...

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

NASA's SPHEREx, which will map millions of galaxies across the entire sky, captured one of its first exposures March 27. The ...

The space rock is expected to zoom past our planet at a zippy 28,655 miles per hour, according to the space agency.

Venus, however, is a different story. Its crust is thicker—anywhere from 30 to 90 kilometers—and its surface is extremely hot ...