The supermassive black hole sitting at the heart of our galaxy is considered to be a slumbering giant. However, an ...

NASA has taken a surprising new look at a white dwarf star called EX Hydrae, revealing details that astronomers have never ...

Both NASA’s James Webb Space Telescope and Chandra X-ray Observatory caught these two galaxies in a close embrace.

It's the last clearly observed supernova in the Milky Way, Gassel said.

A supermassive black hole in the spiral galaxy NGC 3783 just delivered an X-ray surprise that astronomers have never watched ...

The Crab Nebula, the result of a bright supernova explosion witnessed by astronomers in 1054 A.D. Chandra sees the rings around its center with jets blasting into space (bright purple).X-ray: (Chandra ...

University of Iowa graduate research assistant Jacob Payne uses nitrogen to dry off a mirror at Van Allen Hall in Iowa City on Friday. Payne — with guidance from UI Physics and Astronomy Associate ...

Our galaxy's supermassive black hole is famous for being one of the dimmest in the universe. Evidence from a new space ...

The most powerful X-ray telescope ever built has reached its landmark 25th anniversary in space — but back on Earth, astronomers worry that its future is very much in doubt. Supporters of the Chandra ...

Chandra, the world’s most powerful X-ray telescope, has been peering at black holes, stellar explosions and dark energy for a quarter-century Carlyn Kranking - Associate Web Editor, Science ...

NASA is ramping up work on one large space telescope while also laying the groundwork for future observatories.