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The lowest energy transfer to Mars is a Hohmann transfer orbit, a conjunction class mission which would involve a roughly 9-month travel time from Earth to Mars, about 500 days (16 mo) [citation needed] at Mars to wait for the transfer window to Earth, and a travel time of about 9 months to return to Earth. [9] [10] This would be a 34-month trip.
At least two-thirds of Mars' surface is more than 3.5 billion years old, and it could have been habitable 4.48 billion years ago, 500 million years before the earliest known Earth lifeforms; [4] Mars may thus hold the best record of the prebiotic conditions leading to life, even if life does not or has never existed there.
Musk has made statements on several occasions about aspirational dates for Starship's earliest possible Mars landing, [31] including in 2022, that a crewed mission to Mars could take place no earlier than 2029. [32] SpaceX's early missions to Mars are to involve small fleets of Starship spacecraft, funded by public–private partnerships. [33]
By 2008, Mars Odyssey had mapped the basic distribution of water below the shallow surface. [40] The ground truth for its measurements came on July 31, 2008, when NASA announced that the Phoenix lander confirmed the presence of water on Mars, [41] as predicted in 2002 based on data from the Odyssey orbiter. The science team is trying to ...
It’s long been all but settled science that Mars was once home to copious amounts of water. ... The water didn’t last long—just the first 1.5 billion years of the planet’s 4.5 billion year ...
Similar channels on Earth are formed by flowing water, but on Mars the temperature is normally too cold and the atmosphere too thin to sustain liquid water. Nevertheless, many scientists hypothesize that liquid groundwater can sometimes surface on Mars, erode gullies and channels, and pool at the bottom before freezing and evaporating. [76]
Water was first discovered on Mars in 2008 by NASA’s Phoenix Mars lander. The agency’s rovers have been exploring the Martian surface and looking for the ingredients and signs of ancient ...
Curiosity is a car-sized Mars rover exploring Gale crater and Mount Sharp on Mars as part of NASA's Mars Science Laboratory (MSL) mission. [2] Curiosity was launched from Cape Canaveral (CCAFS) on November 26, 2011, at 15:02:00 UTC and landed on Aeolis Palus inside Gale crater on Mars on August 6, 2012, 05:17:57 UTC.