The SMITHSONIAN ASTROPHYSICAL OBSERVATORY is a part of the Smithsonian Institution which, in conjunction with the Harvard ...

A waxing Moon brightens the sky as we catch our last looks at Uranus and view Venus, Mercury, Jupiter, and Mars in the sky ...

Swarms of satellites launched by SpaceX and other companies are disrupting astronomical observations. Here's how scientists ...

From the outside, a planetarium and an observatory might look a somewhat similar, but it's what's inside that counts.

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

This image of the Helix Nebula, released on March 4, 2025, shows a potentially destructive white dwarf at the nebula's center ...

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

“For three nights, I think, I did not sleep,” she later wrote. In turn, Payne-Gaposchkin changed astronomy when she proposed what the stars were made of. Although scientists would later come to accept ...

During evenings in April 2025, there are two bright planets visible. The departure of Venus has left Jupiter, in the west at ...

This stunning image features a deep field view of the Cassiopeia constellation where the two small planetary nebulas can be ...