The HETE-2 satellite is helping astronomers cement the link between gamma-ray bursts and supernovae.
Hundreds of astronomy enthusiasts gathered in the Florida Keys last week to socialize, shop, and observe.
A new study suggests that a globular cluster spawned the night sky's brightest X-ray star.
New observations of a binary black-hole system may shed light as to its origin.
The Laser Interferometer Gravitational-wave Observatory is online and listening for black-hole collisions.
By measuring the polarization of the cosmic microwave background radiation — an unprecedented technical achievement — radio astronomers have proven once and for all that the microwaves really are the Big Bang's afterglow. University of Chicago astronomer John Carlstrom broke the news today at the Adler Planetarium and Astronomy Museum, which is hosting a...
Does X mark the spot where two supermassive black holes have melded into one?
New evidence strengthens the link between the two most stupendous kinds of cosmic explosions.