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

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

This colorful image of the Helix nebula may mirror what someday could become of our sun and our home planet. Released on ...

Chandra, which is named for Nobel Prize-winning ... from the radiation for only a small portion of each orbit. An optical telescope uses a large, curved-glass primary mirror to gather light ...

Space scientists have unveiled a cosmic bouquet in time for Valentine's Day. The new image includes data from several telescopes to create a composite containing the deepest X-ray picture ever ...

A bouquet of thousands of stars in bloom has arrived. This composite image contains the deepest X-ray image ever made of the spectacular star-forming region called 30 Doradus. By combining X-ray ...

Ansky, a once-dormant black hole, is now emitting powerful X-ray bursts, giving scientists a rare chance to study its ...

Astronomers from the University of Sheffield and Pennsylvania State University have performed X-ray and optical observations of a massive star known as Melnick 39. As a result, they found that Melnick ...

Astronomers are using the Chandra X-Ray observatory, a powerful, space-based telescope, to examine the first black holes. These black holes appeared in the first one to two billion years after the ...

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