- News Home
27 November 2013 12:59 pm ,
Vol. 342 ,
The new head of the National Center for Science Education promises to "fight the good fight" against attacks on...
Analyses of the H7N9 strains isolated from four new cases show that the virus is evolving rapidly, heightening anxiety...
In 2009, Jack Szostak shared a Nobel Prize for his part in discovering the role of telomeres, the end bits of...
Science has exposed a thriving academic black market in China involving shady agencies, corrupt scientists, and...
Paper-selling agencies flourish in the aura of reputable businesses. For some scientists, it may be difficult to tell...
Featuring the first lunar rover in 40 years, Chang'e-3 is seen as an important milestone on China's quest to send a...
Data collected by satellites and floating probes have chronicled a 2-decade rise in the temperature and thickness of a...
Cholesterol, the artery-clogging molecule that contributes to cardiovascular disease, has another nasty trick up its...
- 27 November 2013 12:59 pm , Vol. 342 , #6162
- About Us
ScienceShot: Icy Europa Looking More Inviting
16 November 2011 1:05 pm
Scientists analyzing decades-old images with new eyes are seeing signs that Jupiter's radiation-blasted moon Europa may harbor giant under-ice "lakes" that could sustain life. Europa doesn't lack for the prime ingredient for life: liquid water. The moon has a global ocean hundreds of kilometers deep that is covered by a layer of ice perhaps 10 or 20 kilometers thick. But a team of glaciologists and planetary scientists report online today in Nature that—judging by the way erupting volcanoes on Earth disrupt their ice caps—huge pools of water must lie as little as 3 kilometers beneath the surface. On Europa, rather than a volcano, a rising plume of warmer but still solid ice would drive ice melting a few kilometers beneath the surface. And then a briny slush of ice would rise from the resulting lake and disrupt the surface to form Europa's long-known chaotic terrains of jumbled ice blocks. Direct confirmation of giant Europan lakes each holding the combined volume of North America's Great Lakes must await radar probing by a multibillion-dollar spacecraft that is still stuck on planetary scientists' wish list.
See more ScienceShots.