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First Merger Of Three Black Holes Simulated On A Supercomputer

17:41 18-04-2008; source: www.sciencedaily.com

The same team of astrophysicists that cracked the computer code simulating two black holes crashing and merging together has now, for the first time, caused a three-black-hole collision. Scientists have simulated triplet black holes to test their breakthrough method that, in 2005, merged two of these large mass objects on a supercomputer following Einstein's theory of general relativity.

Delta II Rocket Coming Together For NASA's GLAST Satellite Launch

17:41 18-04-2008; source: www.sciencedaily.com

The Delta II 7920-H, or "Heavy," rocket that will launch NASA's Gamma-ray Large Area Telescope satellite is in the process of being assembled on Launch Pad 17-B at Cape Canaveral Air Force Station, Florida.

Radiation Risks For Astronauts On A Mission To Mars

17:41 18-04-2008; source: www.sciencedaily.com

The European Space Agency has chosen the GSI accelerator facility to assess radiation risks that astronauts will be exposed to on a Mars mission. GSI was selected because its accelerator is the only one in Europe able to create ion beams similar to those found in space. To determine possible health risks of manned space flights, scientists from all over Europe have been asked to investigate the effects of ion beams in human cells and organs.

Hubble Pinpoints Location Of Record-breaking Cosmic Explosion

17:41 18-04-2008; source: www.sciencedaily.com

NASA's Hubble Space Telescope has photographed the fading optical counterpart of a powerful gamma ray burst that holds the record for being the intrinsically brightest naked-eye object ever seen from Earth. For nearly a minute on March 19, this single "star" was as bright as 10 million galaxies. Hubble Wide Field and Planetary Camera 2 (WFPC2) images of GRB 080319B, taken on Monday, April 7, show the fading optical counterpart of the titanic blast.

What Are The Odds Of Finding Extraterrestrial Intelligent Life?

17:41 18-04-2008; source: www.sciencedaily.com

A mathematical model suggests that the odds of finding new life on other Earth-like planets are low, given the time it has taken for beings such as humans to evolve and the remaining life span of the Earth. Structurally complex and intelligent life evolved late on Earth and it has already been suggested that this process might be governed by a small number of very difficult evolutionary steps.

Space Radiation May Cause Prolonged Cellular Damage To Astronauts

17:41 18-04-2008; source: www.sciencedaily.com

With major implications for long-duration space travel, a new study demonstrates that the high-energy radiation found in space may lead to premature aging and prolonged oxidative stress in cells. The findings suggest that astronauts may be at increased risk of colon cancer due to exposure to the high linear energy transfer radiation found in space.