The famed physicist reworked some of his old ideas.
Want to find Dyson spheres? Gaia, a satellite staring at nearly every star in the galaxy, might be able to lend a hand.
The dark planet only reflects 1 percent of the light hitting it.
The newly released database contains over a billion stars.
In a galaxy of billions of stars, finding the ones born alongside our own can be difficult—but scientists finally have a way.
The strong gravity of a larger version of Earth could ground any Super-Earthling rockets.
The search for new planets continues with today's launch of NASA's TESS space telescope.
Proxima Centauri momentarily lit up in the night sky, which could spell doom for its "habitable" planet.
New research finds potentially thousands of black holes orbiting within a few light-years of the galactic center.
Our galaxy has more than a few tricks up its sleeves.
An event called gravitational lensing allowed astronomers to discern a star 9 billion light-years away.
The strange galaxy is missing the invisible, mysterious matter present in pretty much every other galaxy in the universe.
They floated out to install new antennas, replace a bad camera and remove jumper cables from a leaky radiator.
But there's a hell of a lot we still don't know about this wanderer.
The dull, gas-giant like entities are the subject of much debate.
"He dove into the chasm between quantum theory and general relativity and came back with a pearl."
Big or small, dense or empty, it's one thing they all share.
Quantum weirdness FTW.
The discovery tells us more about the early universe and reveals possible clues about the true characteristics of dark matter.
Astronomers have been waiting 16 years for the star to pass close to the immense gravity of the black hole Sagittarius A*.
A brutal stellar assault.
A one in ten million shot.
A recent discovery would upend years of size estimates for our largest galactic neighbor.
There's a whole universe out there.
Potentially trillions have been spotted.