spacetoday.net: space news from around the webin association with SpaceNews


Arsenic microbe discovery has implications for astrobiology
Posted: Fri, Dec 3, 2010, 7:10 AM ET (1210 GMT)
GFAJ-1 arsenic microbe (AAAS/Science) NASA-supported researchers announced Thursday the discovery of a terrestrial microbe that make use of the element arsenic, a discovery that could have implications for the search for life beyond Earth. Scientists discovered the microbe, GFAJ-1, in Mono Lake in California. In lab tests where the microbe was exposed to arsenic, it incorporated the element into structure, including its DNA, replacing phosphorous. While the discovery involved a terrestrial life form, scientists said that the discovery could inform searches for life beyond Earth because it demonstrates that alternative biochemistries are possible. The announcement attracted significant attention because of rumors, based on a NASA announcement of a press conference about the discovery, that NASA would instead announce a discovery more directly associated with extraterrestrial life.
<<previous article   next article>>
news in brief
Senate hearing raises doubts of Artemis
Posted: Sat, Sep 6 8:50 AM ET (1250 GMT)

NASA names new associate administrator
Posted: Sat, Sep 6 8:46 AM ET (1246 GMT)

President Trump moves Space Command HQ to Alabama
Posted: Sat, Sep 6 8:44 AM ET (1244 GMT)

news links
Saturday, September 13
SpaceX, Northrop Grumman to launch supplies to ISS
Spectrum News — 5:52 am ET (0952 GMT)
Cornell-led space tech startup acquired by Pasteur Labs
Cornell Univ. — 5:51 am ET (0951 GMT)
How China Is Transforming Space Power
The Diplomat — 5:46 am ET (0946 GMT)


about spacetoday.net   ·   info@spacetoday.net   ·   mailing list