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Sun looks like a psychedelic marble in new NASA image

A trippy image of the sun created from three sources hints at something that might help us unravel the mysteries of our star -- and dark matter.

By July 9, 2015


NASA sends NuStar black-hole hunter into space

Using state-of-the-art mirrors and detectors on opposite ends of an extended 33-foot-long mast, a small X-ray telescope launched today will study black holes and the mechanics of supernova explosions.

By June 13, 2012


Black-hole hunter NuStar has X-ray eyes (pictures)

The space telescope will translate high-energy X-ray light into images to give NASA unprecedented views of black holes.

11 Images By June 12, 2012


Slumbering black hole in Milky Way roars back to life

A black hole that hasn't been heard of since 1989 has suddenly become active again and is now the brightest object in the X-ray sky.

By June 26, 2015


Parkes Observatory: Extraterrestrial messages or microwave noodles?

Strange signals picked up by the radio telescope pointed towards the stars in Parkes, Australia have a rather more mundane origin.

By April 12, 2015


Five years of the sun in three minutes

To celebrate the work being done by its Solar Dynamics Observatory, NASA has released a video of highlights on the fifth anniversary of its launch.

By February 11, 2015


Black-hole telescope gazes at the sun through X-ray eyes

An X-ray telescope designed to hunt for black holes takes a look at the sun and helps NASA deliver an intense portrait of our closest star.

By December 23, 2014


NASA finds 'Mighty Mouse' pulsar brighter than 10 million suns

The discovery of a new unusually bright dead star leads astronomers to question assumptions about a type of cosmic radiation -- and pulsars themselves.

By October 8, 2014


Peer into the heart of an exploding star

For the first time, we have telescopes strong enough to see the radioactivity at the heart of the supernova known as Cas A. What scientists have seen there helps unravel the mystery of how a star dies.

By February 20, 2014


Using space telescopes to measure black hole distortion

The ability to measure the distortion of space and time near the supermassive black holes lurking at the hearts of many, if not all, large galaxies may give astronomers a new tool for studying galactic evolution.

By February 27, 2013