Reuters Science News Summary
Following is a summary of current science news briefs.
Oldest fossils found in Greenland, from time Earth was like Mars
The earliest fossil evidence of life on Earth has been found in rocks 3.7 billion years old in Greenland, raising chances of life on Mars aeons ago when both planets were similarly desolate, scientists said on Wednesday. The experts found tiny humps, between one and 4 cm (0.4 and 1.6 inches) tall, in rocks at Isua in south-west Greenland that they said were fossilized groups of microbes similar to ones now found in seas from Bermuda to Australia.
SpaceX signs first customer for used Falcon rocket
Elon Musk's SpaceX has signed its first customer to use a previously flown rocket, with launch planned for later this year, the companies said on Tuesday. The launch for Luxembourg-based satellite operator SES SA will mark the first commercial reuse of a Falcon 9 rocket, which is crucial to efforts by technology entrepreneur Musk's Space Exploration Technologies Corp to reduce the cost of space launches.
Curious radio signal stirs talk of extraterrestrials
A curious radio signal picked up by a Russian telescope is probably not a transmission from an extraterrestrial civilization, but astronomers in California are taking a second look anyway, the SETI Institute said on Tuesday. A group of Russian astronomers last year detected what appeared to be a non-naturally occurring radio signal in the general location of a star system 94 light-years from Earth.
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