Stellar Wormholes, Space Data and Supercooling Sodawater

BY Jenny Marder  March 7, 2011 at 11:56 AM EST

One Scientist’s Dramatic Exodus from Libya

Science Insider.jpgThe skull of a valuable ancient elephant-like animal is housed in the Sarayy al-Hamra fort in Tripoli, the former site of the Libyan Museum of Natural History. This piece includes the tale of this paleoanthropologist’s escape from Libya, and his concern that the 6 to 8 million-year-old Stegotetrabelodon syrticus fossil and other artifacts could get caught in the crossfire. (Ann Gibbons, Science)

Christchurch Quake Mapped from Space

BBC.jpgAn orbiting satellite captured before and after radar images of the Feb. 22 earthquake in Christchurch, New Zealand. Scientists then used the space data to create a map called an “aperture radar inteferogram” that showed ground motion during the 6.3-magnitude quake. Amos reports on the new technology and how this quake sets itself apart. (Jonathan Amos, BBC News)

Antarctica Growing from the Bottom Up

Discovery News.jpgThis very visual piece helps explain the phenomenon of pooled meltwater refreezing under the Antarctic ice sheet and pushing the ice sheet up, deforming it. The process is similar to the lake effect, this Discovery News article reports. Includes videos and images — one simulation shows sodawater exposed to supercooling — to explain the effect. (John D. Cox, Discovery News)

Stellar Wormholes May Exist

A team of physicists say some stars may have wormholes inside, which could help explain why the universe is accelerating. Wormholes are defined here as “throatlike tunnels connecting distant points in spacetime.” But the analysis is incomplete, and others are skeptical. The piece includes a nice quote at the end supporting science that is experimental and “far-fetched.” (Ron Cowen, Science News)