Researchers think a planet-wide groundwater system may have once existed on Mars, and SpaceX launched the very first commercial crew capsule which docked on the International Space Station!
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Sources:
https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2018JE005802
http://www.esa.int/Our_Activities/Space_Science/Mars_Express/First_evidence_of_planet-wide_groundwater_system_on_Mars
https://astrobiology.nasa.gov/news/swept-away-evidence-of-erosion-on-mars/
https://www.nasa.gov/multimedia/imagegallery/image_feature_98.html
https://uanews.arizona.edu/story/how-mars-lost-its-atmosphere-and-became-frigid-desert
https://www.nasa.gov/press-release/nasa-spacex-launch-first-flight-test-of-space-system-designed-for-crew
https://phys.org/news/2019-03-america-crew-capsule-rockets-space.html
Tweets by NASA
https://www.businessinsider.com/spacex-big-falcon-spaceship-construction-musk-mars-missions-2018-9
https://www.spacex.com/mars
https://blogs.nasa.gov/spacestation/2019/03/03/spacex-crew-dragon-hatch-open/
Images:
https://www.nasa.gov/multimedia/imagegallery/image_feature_98.html
https://commons.wikimedia.org/wiki/File:South_Polar_Cap_of_Mars_during_Martian_South_summer_2000.jpg
http://m.esa.int/spaceinimages/Images/2018/04/Mars_Express
http://m.esa.int/spaceinimages/Images/2019/02/Example_of_basin_features
https://svs.gsfc.nasa.gov/4635
https://svs.gsfc.nasa.gov/11796
https://en.wikipedia.org/wiki/File:MRO_Aerobrake.jpg
https://www.spacex.com/news/2019/03/04/crew-dragon-docks-iss
https://www.nasa.gov/centers/marshall/history/this-week-in-nasa-history-sts-118-delivers-third-starboard-truss-to-iss-august-8-2007.html