Science & Nature > Archive > July 2008

Science & Nature

NASA's THEMIS Satellites Discover What Triggers Eruptions of the Northern Lights

7/24/2008 Researchers have discovered that an explosion of magnetic energy a third of the way to the moon powers substorms, sudden brightenings and rapid movements of the aurora borealis, called the Northern Lights. More

Greenland Archaeology Team Posts Audio Reports from the Field

7/18/2008 Researchers with the NSF-funded Inglefield Land Archaeology project will be working this summer at Cape Grinnell, a site where European and Thule native cultures first came into contact in the 1800's. More

For Toy-Like NASA Robots in the Arctic, Ice Research Is Child's Play

7/18/2008 Several snowmobiles navigated speedily over the Alaskan outback in late June. This scene might seem ordinary except that the recently unveiled snowmobiles are autonomous, toy-size robots called SnoMotes – the first in a prototype network. More

A Single Boulder May Prove that Antarctica and North America Were Once Connected

7/17/2008 A lone granite boulder found against all odds high atop a glacier in Antarctica may provide additional key evidence to support a theory that parts of the southernmost continent once were connected to North America hundreds of millions of years ago. More