Black Holes
Hawking(ish) Radiation Observed
In 1974, Steven Hawking proposed a seemingly ridiculous hypothesis. Black holes, the gravitational monsters from which nothing escapes, evaporate. To…
The Black Hole/Globular Cluster Correlation
[/caption] Often in astronomy, one observable property traces another property which may be more difficult to observe directly; X-ray activity…
Powerhouse Black Hole Blows a Huge Bubble
[/caption] A relatively small black hole is producing tremendously powerful jets while creating a huge bubble of hot gas. Both…
Galaxy Mergers Make Black Holes ‘Light Up’
Only about 1% of supermassive black holes emit large amounts of energy, and astronomers have wondered for decades why so…
Black Hole Gets Kicked Out of Galaxy
[/caption] Supermassive black holes are thought to lie at the center of most large galaxies. But off in a distant…
Is Our Universe Inside Another Larger Universe?
[/caption] A wormhole is a hypothetical "tunnel" connecting two different points in spacetime, and in theory, at each end of…
Astronomers Find Black Holes Do Not Absorb Dark Matter
[/caption] There's the common notion that black holes suck in everything in the nearby vicinity by exerting a strong gravitational…
Can a Really, Really Fast Spacecraft Turn Into A Black Hole?
This question was posed in an Astronomy Cast episode a while back. It offers an interesting thought experiment, although a…
GRB Central Engines Observed in Nearby Supernovae?
[/caption] Are the relativistic jets of long gamma ray bursts (GRBs) produced by brand new black holes? Do some core-collapse…
Extra-Galactic Whopper Black Hole Breaks Distance Record
[/caption] Not only is a newly found black huge, it also is the most far-away stellar-mass black hole ever detected.…