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Pathfinder: a Solar EV Airplane That Ate Altitude Records for Lunch, Without Any Pollution

A short time ago, we explained why electrically propelled aircraft are so much more difficult to build than their road roving four and two-wheeled counte. ....

New Haven , United States , Paul Maccready , Stevenf Udvar , Aerovironment Corporation Of Arlington , Space Museum , Hazy Center , American Vanguard , Aerovironment Corporation , Werner Von , Pathfinder Plus , National Air , Opportunity Rovers ,

Arab, Chinese and American ships arrive on Mars in quick succession – Messenger Sidereal – KSU

ksuadminFebruary 8, 2021
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The moment of truth has come for the flotilla of a spacecraft that was sent to Mars last July. This Tuesday (9th) the Al-Amal spacecraft (Esperança, in Arabic) will perform its maneuver to enter orbit around Mars.
It is the first interplanetary mission in the United Arab Emirates in which American universities are significantly involved. The maneuver begins at 12:14 p.m. (Brazilian time) and involves activating the propellers continuously for 27 minutes to slow the ship down and use Mars’ gravity to trap it in orbit.
When this works, the probe will spin around Mars every 40 hours, swinging the altitude between 1,000 and 50,000 km. Subsequent adjustments bring the spaceship into its orbit of scientific observation, less eccentric and slower (55 hours). ....

United Arab Emirates , United States , Utopia Planitia , Opportunity Rovers , Folha Corrida , Sidereal Messenger , ஒன்றுபட்டது அரபு அமீரகங்கள் , ஒன்றுபட்டது மாநிலங்களில் , வாய்ப்பு ரோவர்கள் , போல் தாழ்வாரம் ,