black hole
Adaptive optics at Europe's flagship telescope looks back on a decade of successful observations
NACO looks back on a decade of scientific results, including the first direct image of an exoplanet and insight into the surroundings of our home galaxy's…
NASA's Hubble Confirms That Galaxies Are The Ultimate Recyclers
This ongoing recycling keeps galaxies from emptying their “fuel tanks” and therefore stretches out their star-forming epoch to over 10 billion years. However,…
NASA's Chandra adds to black hole birth announcement
Over three decades ago, Stephen Hawking placed — and eventually lost – a bet against the existence of a black hole in Cygnus X-1. Today, astronomers are…
VLBA observations key to 'complete description' of black hole
For the first time, astronomers have produced a complete description of a black hole, a concentration of mass so dense that not even light can escape its…
VLT observations of gamma-ray burst reveal surprising ingredients of early galaxies
After their positions have been pinned down, they are then immediately studied using large ground-based telescopes that can detect the visible-light and…
Astronomers Pin Down Galaxy Collision Rate
The galaxy merger rate is one of the fundamental measures of galaxy evolution, yielding clues to how galaxies bulked up over time through encounters with other…