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Download PDF by David J. Shayler, Andrew Salmonand Michael D. Shayler : Mars walk One. First Steps on a New Planet

By David J. Shayler, Andrew Salmonand Michael D. Shayler

On 14 January 2004, President George W. Bush seemed earlier than staff atNASA headquarters and introduced a brand new plan to discover house and expand ahuman presence throughout our sun approach. This initiative energises and refocusesNASA on new ambitions that come with manned missions to the Moon by means of 2015 and apermanent lunar base through 2020, with Mars as an final target. The Presidentstated: we'll construct new ships to hold males ahead into the universe, to achieve anew foothold at the Moon, and to organize for brand new trips to worlds past ourown.

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The first task for Viking 1 was to study the proposed landing area in Chryse, and the first photographs taken of the area showed it to be much rougher than expected - to such an extent, moreover, that the eventual landing site was changed twice, still in Chryse but further west. One of the main concerns for this first American landing mission was to ensure that the lander did not descend onto a rock that might puncture the spacecraft and render it useless. In the event, it touched down within 30 km of the revised impact point; but it had certainly been lucky, as it was less than 10 metres from a boulder large enough to badly damage the craft.

Their colour is under debate (black, white and blue have been mentioned), but they are definitely not the same colour as Mars. 06). Moonlit nights on Mars bear no comparison to those on Earth. The two moons are too small to make much difference, and their movement across the martian skies is unusual to say the least. Phobos positively scurries across the heavens twice each day, taking just over 4 hours between rising and setting. 5 days to cross the sky before disappearing for the next three days.

Due to the very low gravity of Phobos, a landing would be more like a rendezvous and docking than a touch-down, and anchors might be required. The deep dust pools are a hazard, but astronauts could free-fall from the lander cabin to the surface. Heavy weights would serve to keep the crew on the surface. Regolith from Deimos can more readily escape into interplanetary space, because Exploration of the moons of Mars will probably feature manoeuvring units with retention devices rather than surface traverses.

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Mars walk One. First Steps on a New Planet by David J. Shayler, Andrew Salmonand Michael D. Shayler


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