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Science News: Mars Meteorite with Odd 'Tunnels' & 'Spheres' Revives Debate Over Ancient Martian Life
The discovery of tiny carbon-rich balls and tunnels inside a Martian meteorite has once again raised the possibility that the Red Planet was teeming with primitive life millions of years ago. The meteorite, which fell to Earth during the Stone Age, contains microscopic burrows and spheres that resemble the marks microorganisms leave when they eat through rocks on Earth, scientists report in the journal Astrobiology this month. What's more, these features seem to have been pressed into the Mars rock before it was hurled off the Red Planet by an impact event, the researchers add. The authors of the new research are not claiming they've found evidence of ancient life on Mars.
By Irene Klotz CAPE CANAVERAL, Florida (Reuters) - A panel investigating an astronaut's near drowning during a spacewalk outside the International Space Station in July found that his spacesuit leaked during an earlier outing, officials said on Wednesday. NASA misdiagnosed the earlier leak, believing the water found in the helmet of Italian astronaut Luca Parmitano on July 9 was due to a ruptured drink bag, said space station chief engineer Chris Hansen, who chaired an investigation panel appointed by the U.S. space agency. Instead, a week later on July 16, Parmitano and NASA astronaut Chris Cassidy put on their spacesuits to continue work outside the space station, a $100 billion research complex that flies about 260 miles above Earth.
NASA's newest weather satellite soared into space today (Feb. 27), kicking off a mission to observe rainfall and snowfall around the globe in unprecedented detail. The Global Precipitation Measurement (GPM) Core Observatory, a joint effort between NASA and the Japan Aerospace Exploration Agency (JAXA), blasted off aboard an H-2A rocket from Japan's Tanegashima Space Center today at 1:37 p.m. EST (1837 GMT; GPM will deliver near real-time observations of precipitation every three hours all over the world, greatly improving scientists' understanding of climate change and the global water cycle, mission officials said. [NASA's Rain-Watching GPM Satellite Mission in Pictures (Gallery)] "This is going to provide us the most accurate and advanced precipitation measurements to date from NASA satellites," Gail Skofronick-Jackson, GPM project scientist at NASA's Goddard Space Flight Center in Greenbelt, Md., said during a press briefing last month.
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- Science News: Spacesuit Leak That Nearly Drowned Astronaut Could Have Been Avoided
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- Science News: Scientists pinpoint exotic new particle called quantum droplet
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- Science News: Population of Known Alien Planets Nearly Doubles as NASA Discovers 715 New Worlds
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