Experts: NASA Should Set Up Ethical Rules For Astronauts On Long Space FlightsAccording to health and ethic experts, NASA should set up ethical rules regarding health of astronauts on long space flights.
Study: Mars Has Too Little Methane To Support LifeNew readings from NASA’s Mars rover Curiosity show that the Martian surface has almost no trace of methane – a sign that the planet likely doesn't support living microbes.

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