Astronomers have recently started looking for black holes bigger than galaxies. Brian Lacki explains how these “stupendously ...
This video explores obscure answers to the Fermi Paradox, asking why the universe seems silent if alien civilizations should ...
A mysterious object speeding across the universe might look like a UFO, but the real story is even more fascinating.
Add Yahoo as a preferred source to see more of our stories on Google. As an astrophysicist, I've spent two decades modeling how black holes spin, how that creates jets, and how they affect the ...
Newly declassified Pentagon UFO files have reignited debate over a possible alien presence on the Moon after a previously secret NASA Apollo 16 briefing surfaced online. The recording references a ...
One of the most powerful objects in the universe is a radio quasar – a spinning black hole spraying out highly energetic particles. Come too close to one, and you’d get sucked in by its gravitational ...