A naked-eye star’s 50-year mystery is solved—its bizarre X-rays come from a hidden, feeding white dwarf.
The flight will take 4 days to get to the Moon and another 4 days to return with a splashdown in the Pacific Ocean.
A luminous swirl set against the deep black of space, the barred spiral galaxy IC 486 glows with a soft, ethereal light in ...
Look to the skies this weekend!
Nearly a millennium ago, astronomers witnessed a brilliant new star blazing in the sky—a supernova so bright it was visible ...
Yet another meteor has entered the Earth's atmosphere, this time in Oregon. Watch the "fireball" briefly illuminate the ...
Surprise, it's twins.
A new study proposes an innovative way to uncover elusive supermassive black hole binaries by tracking subtle, repeating ...
Comet MAPS could soon become as bright as Venus, offering a once-in-a-decade spectacle for the naked eye. Here is what to ...
The sighting is the third in a week after other meteors left behind echoes of loud "booms" and debris that hit homes.
New Hubble images show the Crab Nebula is still expanding and evolving nearly 1,000 years after its original supernova ...
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