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Questions tagged [lander]

Questions regarding devices used to make a controlled descent and touchdown onto another object, usually either to transfer objects, or perform scientific observations.

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6
votes
1answer
410 views

Can a lander on an airless body BE a rover?

Rovers normally roll off a lander, or are otherwise deployed by one. When I look at the design of ATHLETE, it isn't hard to imagine a rocket engine bolted underneath it, and ATHLETE's legs doing the ...
4
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1answer
459 views

What did JPL's 1939 lunar lander look like and what practical aspects of landing on the Moon did this engineering design address?

According to Wikipedia's Jet Propulsion Laboratory: During JPL's Army years, the laboratory developed two deployed weapon systems, the MGM-5 Corporal and MGM-29 Sergeant intermediate range ballistic ...
3
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1answer
89 views

Farthest distance to a solar system object that's been determined by spacecraft transponder?

Bouncing radar off of Venus' surface has yielded a rich body of data about the planet. Based on Venus' aphelion and Earth's perihelion, we know then that the answer is at least 38 million kilometers ...
3
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0answers
137 views

How many solar system bodies have had coherent radio transponders?

A transponder amplifies, (often) frequency-shifts, and rebroadcasts a received signal. Old-style telephone and TV distribution satellites in GEO used simple transponders to rebroadcast the uplinked ...
2
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1answer
64 views

What criteria was used to select potential landing sites for Hayabusa-2's rovers on Ryugu?

The NYTimes' article Hayabusa2 Prepares to Drop Rovers on Asteroid Ryugu says Sept. 19 Rock Hoppers Hayabusa2 is preparing to deploy two small rovers this week, each about 7 inches wide. Ryugu’s ...
2
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1answer
81 views

Chang'e 4, what is planned during December 12 and January 3?

Chang'e 4 is in Moon orbit since December 12, the landing is scheduled for January 3. What is planned during the 22 days in orbit?
2
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1answer
414 views

Is the entire underside of Schiaparelli one big crushable-structure?

The caption in this Space dot com video says that Schiaparelli will drop the last two meters, and the shock will be absorbed by a crushable structure. It is described in the text accompanying this ...
2
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0answers
53 views

How often have dust devils saved a Martian lander or rover?

This answer to How are the Mars Rovers maintained? reminds us that ...much to the surprise of the early Mars scientists and rover teams, Mars takes care of the dust problem for us! Mars' typical ...
2
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1answer
129 views

Is post-X-prize Beresheet better than the X-prize candidate?

As mentioned in this question the total budget of the Lunar X-prize was about US \$30 million, and that included some other prizes beside the winner. However the budget of Beresheet post-X-prize ...
2
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1answer
336 views

How would this two-stage Mars Ascent Vehicle work? Where do you sit?

This curious answer shows an image of a liquid-fueled Mars Ascent Vehicle with a sign in front that only says Two Stage Mars Ascent Vehicle Question: Is there some NASA program associated with it so ...

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