What is “information” in physics? Why do we think it’s preserved, and what happens to information when it falls into a black hole? Why is this a problem? I discuss these questions and more in today’s Ask a Spaceman!
We found the Earth! It’s on the moon. Oh. Wait what? Check it out here at #365DaysOfAtsro with @PaulMattSutter
What happens when black holes collide? What would happen if the Earth stopped spinning? Meet you at high noon on…Saturn. #365DaysOfAstro
Astronomers have used NASA’s Chandra X-ray Observatory to discover a ring of black holes or neutron stars in the galaxy AM 0644-741 in the constellation Volans. This ring of black holes covers an area three times larger than the Milky Way, making it the real Lord of the Rings!
Could we live on Mars? Could we have a telescope big enough to spot cows on another planet? Does time stop inside a black hole?,
Black holes are pretty dangerous, so it’s a good idea to keep an idea on where all the nearby ones are. How close is the closest one, anyway?
Mass goes missing in BH collisions? Is a solar eclipse useful for science?
It’s a mystery that’s puzzled astronomers for years. Which came first, supermassive black holes or the galaxies that surround them?
Join us today for news round up and discussion with @awesomeastropod. Also for September skyguide at #365DaysOfAstro
Astronomer just measured the masses of around 50 supermassive black holes that each one is 5 million times more massive than Sun! @unawe #spacescoop #365DaysOfAstro #news #children #astronomy