Russians in western Siberia captured video of a visible meteorite that streaked across the sky, early Friday morning. The meteorite caused a shockwave strong enough to shatter glass in a wide area, causing hundreds of injuries.
John Hodgman talks to astrophysicist Dr. Neil deGrasse Tyson about the multiverse, ideal space travel scenarios and the trick to explaining dark matter.
Astrophysicist Dr. Neil deGrasse Tyson reflects on 30 years of the shuttle program.
The largest flare on the sun since December of 2006 has erupted, sending up a large cloud of charged magnetic particles, which appeared to cover almost half of the solar surface. Neil deGrasse Tyson, an astrophysicist, speaks with us.
A NASA scientist claims to have found alien bacteria in a meteorite; and the funding debate for exploring the Universe.
After today's landing, the space shuttle Discovery will retire on planet earth. To learn what may be in store for the future of our space aspirations we speak to Louis Friedman and Neil deGrasse Tyson.