How to make a black hole without a star.
The Event Horizon Telescope peered into the Messier 87 galaxy.
Wednesday was a big morning for astronomers.
They're called “supermassive” for a reason.
The Large Magellanic Cloud isn't just a pretty satellite galaxy—it's also a future threat.
What we know about the mysterious life cycle of a black hole.
Also in space: A neighborhood of black holes, a new (and old) reason to study Venus' clouds, and the end of the Lunar XPrize.
And it's much bigger than we expected.
An incredibly luminous snack.
Scientists just switched on the Event Horizon Telescope
Like, 100 times more
The top 7 explanations for the star's weird behavior, ranked roughly in order of plausibility
Warping space to fight infinities
A new kind of space weather
Thanks to a new world-spanning algorithm
Otherworldly desktop backgrounds.
Warning: objects in telescope may be closer that they appear
It's all about the corona
Nothing (or almost nothing) can escape a black hole
Just an easy quantum procedure
That's the latest theory, at least
Dead stars do tell some tales
Scientists zero in on the size, shape, and speed of the gas that reconfigures galaxies