Five weird theories of what lies outside the universe
Physicists have long studied the nature of the universe. But some go a step further into the unknown (and probably unknowable), contemplating what lies outside the boundaries of our universe.
Bill O'Reilly: tidal bore
APOD: 2010 September 17 - Northern Lights over Prelude Lake...
A different astronomy and space science related image is featured each day, along with a brief explanation.
Is Betelgeuse about to blow?
The Asteroid Census - Could It Save the Planet?The Asteroid...
Stephen Hawking believes that one of the major factors in the possible scarcity of intelligent life in our galaxy is the high probability of an asteroid or comet colliding with inhabited planets. We have observed, Hawking points out in Life...
NASA team cites new evidence that meteorites from Mars contain...
Every Black Hole Contains Another Universe?
And, like cosmic Russian dolls, our universe maybe nested inside a black hole in another universe, a new study says.