Black Holes
Neutron Stars Have Jets Too
One time, astronomers thought that only black holes had jets of material pouring out of them. Something to do with…
Are Microscopic Black Holes Buzzing Inside the Earth?
There's a book by Larry Niven called "Hole Man", where a group of explorers on Mars come across an alien…
How Supermassive Black Holes Come Together
Galaxies get bigger and bigger through galactic mergers. Two small galaxies come together, merge their stars, and you get a…
Most Distant Black Hole Discovered
An international team of astronomers have discovered a supermassive black hole at the very edge of the observable Universe, located…
Spitzer Locates a Binary Pair of Black Holes
A clever trick has enabled NASA's Spitzer Space Telescope to calculate the distance to a distant object, confirming that it's…
Supermassive Black Holes Spin at the Limits of Relativity
You know the saying: nothing, not even light can escape a black hole. That makes them invisible. Amazingly, researchers from…
Medium-Sized Black Hole Lurks in a Star Cluster
Supermassive black holes lurk at the heart of galaxies, containing the mass of millions of stars. Stellar mass black holes…
Ejected Black Holes May Take Their Fuel With Them
The huge majestic spiral galaxy we live in today was built up over billions of years through mergers with other…
Supermassive Black Holes Set to Merge
Astronomers have located an ongoing galactic merger, pinpointing the exact location of each galaxy's supermassive black hole. These twin monsters…
New Technique for Finding the Mass of Black Holes
It might sound surprising, but one of the most difficult tasks astronomers have is determining the mass of objects. It…