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Latest News About Black Holes

This image depicts three hot blobs of matter orbiting a black hole. If placed in our Solar System, this black hole would appear like a dark abyss spread out nearly as wide as Mercury's orbit. And the three blobs (each as large as the Sun) would be as far

A black hole is a location in space that possesses so much gravity, nothing can escape its pull, even light. Learn more about what black holes are and the latest news.

The Way Of Things
The Dark Force
Yesterdays News
The Edge Of The Known
The Matter Of Matter
Many galaxies are members of groups or clusters. Since groups and clusters contain so many galaxies relatively close together, it should not be surprising that galaxies sometimes collide with each other.
The Grand Architecture
Galactic Lives
The Tully Collection
Beyond The Event Horizon
Galaxy: Home
Extra-Solar Worlds
Jewels And Junk
The Moon and Earth eclipse choreography is explained.
Aircraft, robotic satellites and the International Space Station flow past us in orbits that look like "Rivers In The Sky"
Know Your Place
How big is the universe? How do you measure distances in space? Radar and other methods can help you out.
Take an in depth tour of our universe with astronomer Brent Tully.