The two astronauts have a busy day ahead of them. Hague and Williams will "patch light leaks in the NICER X-ray telescope, ...

A newly released Hubble pic shows the galaxy LEDA 22057, where the supernova explosion occurred. The spiral galaxy's swirling ...

For humans, the most important star in the universe is our sun. The second-most important star is nestled inside the ...

An international team of scientists has produced the clearest three-dimensional view yet of the Ring Nebula—one of the night ...

The Webb telescope — a scientific collaboration between NASA, ESA, and the Canadian Space Agency — is designed to peer into ...

A massive white dwarf and a sun-like "blue lurker" star tell a remarkable story of what was once a triple-star system in the ...

Proposed budget reductions for the Hubble Space Telescope would impact research and outreach as well as increase the risk to the observatory.

Using the aging Hubble Space Telescope, Achenbach spotted an unusual spiral galaxy quasar with a visible jet. This calls into ...

A pair of quasars that existed when the universe was only 3 billion years old has been spotted by the Hubble Space Telescope. The quasars were powered by a pair of supermassive black holes on a ...

Surrounded by glowing discs of swirling gas, quasars emit immense light that can be seen across vast cosmic distances.

NASA’s Spitzer Telescope revealed the Milky Way’s hidden center, using infrared to uncover its dense, star-packed core. This ...

The James Webb Space Telescope captured photos of one of the earliest supernovas ever seen using infrared technology, and creating a time lapse of the phenomena.