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One of the most powerful black holes in the observable universe has been revealed by NASA's Chandra X-Ray Observatory.
NASA's Chandra X-ray Observatory captures the first-ever X-ray of an exoplanet passing in front of its parent star in a system that is 63 light-years from Earth.
Astronomers use the Very Large Telescope to reveal a space drama involving two unique stars in the Ara constellation.
An Austrian auction house will soon take bids on a camera it claims is the only handheld to come home from an Apollo mission.
NASA's Hubble telescope has taken its deepest ever picture of a cluster of galaxies, revealing some of the faintest and youngest galaxies ever detected.
Astronomers at the Chandra X-ray Observatory explain why the black hole at the heart of the Milky Way galaxy doesn't consume everything in sight.
The Chandra X-ray Observatory delivers astrophysicists another breathtaking first by capturing a dwarf galaxy smashing into a large spiral one.
Newly measured distance to stellar debris in the northern sky links it more firmly to an explosion observers saw in 1181.
Astronomers have spotted a black hole waking up and snacking on a giant planet that got a little too close.
After more than four centuries, latest data reveals that original supernova blast was more powerful than thought and took place farther away in space.