The Chandra X-ray Observatory was launched on July 23, 1999 aboard Space Shuttle Columbia. See 25 'never-before-seen' images ...

The Chandra X-ray Observatory captured imagery of a galaxy that "appears to have pulled in and assimilated all of its former ...

For decades, astronomers have described the galaxy cluster Abell 2029, a vast city of galaxies in the Virgo constellation, as ...

Scientists using NASA’s Chandra X-ray Observatory say a growing supermassive black hole inside galaxy NGC 1365 is consuming ...

A supermassive black hole, two million times the Sun’s mass, is actively consuming surrounding material in galaxy NGC 1365, emitting intense X-rays detectable from Earth.

NASA image shows supermassive black hole in galaxy NGC 1365 feeding on gas and dust, revealing dramatic X ray details nearly ...

A rare supernova appeared five times in the sky, giving scientists a new way to measure how fast the universe is expanding ...

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The protective effect that exercise can have not only the body, but our brain, memory and general wellbeing is something I've ...

In her new book, The 21st Century Brain, scientist Hannah Critchlow explores the overlooked skills that will be necessary to ...

A newly discovered asteroid estimated to be about as long as the Lincoln Memorial is tall is set to fly between the moon and ...

An international team studying data from NASA's Fermi Gamma-ray Space Telescope concludes the mission detected a rare, unusually luminous supernova. The researchers say it likely received its power-up ...