Milky Way's giant black hole awoke from slumber 300 years ago

Milky Way's Giant Black Hole 'Awoke From Slumber' 300 Years Ago
Astronomers have discovered that our galaxy's central black hole let loose a powerful flare three centuries ago. The finding helps resolve a...

Media Telecon Scheduled To Discuss Rocket Launch Failure
Representatives from NASA and Alliant Techsystems, or ATK, will hold a media teleconference Friday morning at 10:30 a.m. EDT to discuss this...

NASA and ATK Investigate Failed Launch Of Hypersonic Experiments
An Alliant Tech Systems suborbital rocket carrying two NASA hypersonic experiments was destroyed shortly after liftoff from NASA's Wallops Flight...

NASA Kennedy to Reopen for Normal Operations Friday
Managers at NASA's Kennedy Space Center, Fla., plan to reopen the center for normal operations Friday morning for workers' first shift.

Biochemistry: Board Review Series
BRS Biochemistry embodies the popular BRS format of succinct outline review of content followed by approximately 500 USMLE-style questions with...

Uncertainty: Einstein, Heisenberg, Bohr, and the Struggle for...
Werner Heisenberg’s “uncertainty principle” challenged centuries of scientific understanding, placed him in direct opposition to Albert...

Einstein's Mistakes: The Human Failings of Genius
Fresh insights into aspects of Einstein we don't usually consider: his mistakes and the role they played in the discovery of his theories.Although...