At a famous 1950 lunch among physicists, Enrico Fermi wondered, "Where are all the aliens?" How far have we come toward ...

Soon, they were set upon the heavens, and over the last few centuries, the telescope has evolved to capture images ... Kepler Space Telescope, named for astronomer Johannes Kepler, was NASA's ...

“When we first saw Ansky light up in optical images, we triggered follow-up observations using NASA’s Swift X-ray space telescope, and we checked archived data from the eROSITA X-ray ...

NASA’s James Webb Space Telescope observed Herbig ... diameter of about 30 arcminutes.) The actual size of an object that covers one arcsecond on the sky depends on its distance from the telescope.

The stars are surrounded by diffraction spikes, which are the starburst-like radiating lines that appear around bright ...

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

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

In 2009, NASA launched the Wide-field Infrared Survey Explorer, or WISE mission, to make infrared observations. This was the latest in a line of space-based, infrared observatories, and it cost about ...

The photo shows two stars in the center, one which shed its layers of dust and gas as it neared the end of its life cycle.

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