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This was the third launch from Earth to Mars this month, following probes sent by the United Arab Emirates and China.
U.S. Vice President Mike Pence wrote on Twitter: “Today is a great day for American leadership in space!”
HELICOPTER INGENUITY
Aboard Perseverance is a four-pound (1.8 kg) autonomous helicopter named Ingenuity due to test powered flight on Mars. The thin Martian atmosphere – 99% less dense than Earth’s – poses a challenge to Ingenuity, which was designed to be light, with rotor blades that are larger and spin more quickly than needed for a helicopter of its mass on Earth.
Since the first Mars rover Sojourner landed in 1997, NASA has sent three others – Spirit, Opportunity and Curiosity – that have explored the geology of Martian plains and detected signs of past water formations. NASA also has successfully sent five landers: Viking 1 and 2, Pathfinder, Phoenix and InSight.
The United States plans to send astronauts to Mars in the 2030s under a program that envisions using a return to the moon as a testing platform for human missions before making the more ambitious crewed Martian voyage.
Perseverance will conduct an experiment to convert elements of the carbon dioxide-rich atmosphere into propellant for future rockets launching off the Martian surface, or to produce breathable oxygen for future astronauts. Perseverance also will collect and store rock and soil samples intended to be returned to Earth in the future.
(Reporting by Joey Roulette in Washington; Editing by Will Dunham)
https://news.google.com/__i/rss/rd/articles/CBMinwFodHRwczovL25hdGlvbmFscG9zdC5jb20vcG1uL25ld3MtcG1uL2Rpc2FzdGVyLXBtbi9uYXNhLWxhdW5jaGVzLW5ldy1yb3Zlci10by1zZWFyY2gtZm9yLXNpZ25zLW9mLXBhc3QtbWFydGlhbi1saWZlLTIvd2NtLzNmYjE4MGY3LTQ2YTEtNDA1My1iZGU1LTM3ZGM5M2MzYTViMy_SAQA?oc=5
2020-07-31 20:12:51Z
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