How the Martian atmosphere was lost to space - SpaceTime with Stuart Gary Series 20 Episode 27

Apr 07, 2017, 04:35 AM

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*How the Martian atmosphere was lost to space New results from NASA’s MAVEN spacecraft have confirmed theories that Solar wind and radiation are responsible for stripping the Martian atmosphere -- transforming the red planet from a warm wet world that could have supported life billions of years ago, into a freeze dried desert. The findings used measurements of today's atmosphere to give the first estimate of how much gas has been removed from Mars over time.

*Why isn't the rotation of Earth slowing down as fast as it should be? The Earth’s rotation is slowing down – but a new study claims it’s not slowing down as quickly as it should. The findings are based on a study of hundreds of ancient eclipse records and lunar occultations

*April Skywatch On this month’s skywatch we check out the stars of the Southern Cross the Alpha Centauri star system and the Lyrids meteor shower generated by the comet C-1 Thatcher.

*SpaceX launch makes history SpaceX has made history becoming the first space operator – other than NASA’s Space Shuttle program -- to successfully reuse a launch vehicle on a second mission. A Falcon 9 rocket previously used to deliver the CRS-8 Dragon Cargo ship to the International Space Station in April 2016 -- was used to successfully launch the SES-10 telecommunications satellite into orbit.

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