Questions tagged [landing]

Questions regarding the specific part of flights, during which a spacecraft touches down on the solid ground of a celestial body.

Filter by
Sorted by
Tagged with
12
votes
6answers
4k views

How will SpaceX tie down a landed stage on the ASDS barge after landing?

The ASDS barge is a large flat surface. A large tall skinny structure will land on it. This is not likely to be very stable on its own. The center of mass is pretty low, since the empty stage tanks ...
21
votes
5answers
9k views

Olympus Mons - viable Mars landing site?

I'm becoming interested in how Mars missions are planning their landings. One aspect I see brought up time and again is Mars' awkward atmosphere - 'just enough there that you have to care about it'. ...
2
votes
1answer
130 views

Next lander/rover mission

Beyond Mars and 67P, what is the next most viable mission for probe landing? How far are we from sending one to the Jupiter or Saturn system?
18
votes
4answers
5k views

What is the largest hurdle of the mission to Mars?

I was shocked when I recently found out just how long it takes to get to Mars. I've been conducting a very informal survey amongst peers of how just how long people think it takes us to travel to Mars....
6
votes
1answer
212 views

Was the gravitational pull at Philae's landing site known prior to landing?

How well was the gravitational field of Philae's landing spot known before the landing? I am referring to the absolute value of the pull, the direction of pull, and the tidal forces.
3
votes
0answers
229 views

If you had 150 kg of ejectable mass prior to entry and another 150 kg during entry/landing of a Mars mission, what could you do with it? [closed]

This question comes from NASA and is the NASA's Balance Mass Challenge: Using "Dead Weight" on Mars Spacecraft to Advance Science and Technology. While landing on Mars, the Mars Science Laboratory (...
18
votes
4answers
8k views

If the Space Shuttle missed its landing approach, what could have been done?

As I understand it, the Space Shuttle was essentially a glider when it was coming back to land, and the engines were not there to facilitate powered flight. So what was the procedure, had the Space ...
15
votes
1answer
961 views

What is the value of the cross-track angle between the two designated CRS-4 first stage recovery zones?

For the SpaceX Falcon 9 launch on its Dragon/CRS-4 cargo delivery mission to the International Space Station, according to Spaceflight 101, two downrange safety zones have been identified: The SpX-...
7
votes
5answers
883 views

Has any spacecraft landed on Earth with propulsion only? Or else, from what highest altitude?

Dragon will land on Earth using only the propulsion from its rocket engines. Has any operational or test spacecraft done that before? If not, what is the highest altitude from which propulsion-only ...
7
votes
2answers
269 views

Will kicked-up “dust” be a problem for Rosetta and lander Philae?

I see that escape velocity on 67P/Churyumov–Gerasimenko is 0.64 m/s. (Contrast Earth's 11,186 m/s.) With such light gravity I imagine any material kicked up would take hours to land, or orbit ...
8
votes
1answer
380 views

Rosetta's lander, Philae will “anchor” itself on Comet 67P. What level of control can we have over this?

Rosetta's lander, Philae is scheduled to land on Comet 67P in November 2014. This will involve use of "harpoon" to anchor itself to make sure Philae remains attached to the surface despite weak ...
7
votes
1answer
455 views

Where is SpaceX planning to land their booster rockets for Mission 14 and 15?

SpaceX has stated "Flights 14 and 15 will attempt to land on a solid surface with an improved probability of success." Are they going to land at the Cape, or some other solid surface?
5
votes
1answer
279 views

What will be the launch and landing sites for Orion?

There is this question that is very interesting. But it made me wonder about upcoming systems. Assuming it gets finished, and this blog makes it seem more real.. Where will it take off from and land. ...
25
votes
11answers
9k views

Could the Space Shuttle have landed on any long runway other than those specially reinforced at Kennedy (TTS), and Edwards (EDW)?

Wikipedia writes to say Buran was the first space shuttle to perform an unmanned flight, including landing in fully automatic mode. ... The same article writes further The automated landing ...
5
votes
3answers
612 views

Landing Satellite via Hohmann Transfer

I'm working on a project that is dealing with calculating the orbital motion of satellites around some given body and one thing I was wanting to try and study was the path that a satellite would take ...
4
votes
1answer
755 views

Has there been any mission to land on a planet or moon in the Outer Solar System?

Are there any planets or moons in the Outer Solar System, where a man-made object has landed and made photographs of its surface? I can remember an article somewhere that said there's only one moon ...
5
votes
2answers
247 views

Curiosity's powered descent stage test

The landing procedure of Curiosity on Mars has been described as a real challenge in part because of the powered descent stage and sky crane. Indeed the separation of Curiosity with the backshell + ...
2
votes
1answer
723 views

How are coordinates and cardinal points defined on on Earth's Moon? [duplicate]

I came across this page - http://www.hq.nasa.gov/alsj/alsjcoords.html that mentions the various landing coordinates of of NASA missions on the Earth's moon. The cordinates are given in the same way as ...
8
votes
1answer
294 views

What is the maximum mass for a reentry capsule that can be recovered in the air?

Landing rockets take away precious mass from the space system mass budget. Recovering capsules in the air from helicopters and planes equipped with hooks and winches has a long tradition since after ...
6
votes
2answers
228 views

Has there ever been done research on mechanical assisted landing and takeoff?

With this I mean using elastic energy to land and possibly reuse this energy at takeoff. So that the "spring" will remain in the compressed state between landing an takeoff by locking it in to place. ...
6
votes
1answer
1k views

What is the significance of the name “Jade rabbit”?

On Saturday (December 14, 2013), the first soft landing on the Moon since 1976 occurred. The rover is named "Jade rabbit", what is the significance of that name?
4
votes
2answers
497 views

Is there any difference in $\Delta V$ requirements for soft landing on near and far side of the Moon?

Would required $\Delta V$ for a lunar soft landing differ if the landing site is selected either on the near or the far side of the Moon? If there is a difference, how big would it be and what would ...
7
votes
1answer
671 views

How will the Mars One landing site be chosen?

How is Mars One planning on choosing a landing site? Will they be able to use NASA assets (Mars Reconnaissance Orbiter, etc) to assist with choosing a site, or will they have to make do with public ...
12
votes
3answers
5k views

Could a Soyuz land in water?

While watching Soyuz exp. 37/1 land, I was struck with a thought: that capsule looks an awful lot like a submarine. This seems to be a problem if the crew ever needed to make an emergency landing ...
18
votes
2answers
912 views

How would a probe land on Europa?

Say we send a craft to Europa which would then launch a probe to land on the surface of Europa. Let's say for the sake of this question that the probe weighs more or less like the Opportunity rover. ...
8
votes
2answers
798 views

Why was Curiosity rover's landing site an ellipse?

According to this article, the landing site of the Curiosity rover was elliptical. Why an ellipse? Would all planetary landers have elliptical landing sites?
6
votes
1answer
178 views

Can the rate of descent be measured with a laser?

Can a laser be used to measure the rate of descent of a re-entry probe during its re-entry into a planet's or satellite's atmosphere? Are there any probes that used a laser to measure its descent?
6
votes
3answers
418 views

Does NASA plan to land on Europa?

I recently studied that life may exist on Europa, an icy moon of Jupiter. Does NASA plan to land a spacecraft on Europa to study its environment in the near future?
8
votes
2answers
26k views

Do gas planets have surfaces suitable for landing on it? [closed]

We already know, we are even taught at school that planets of the Solar System beyond Mars (Jupiter, Saturn, Uranus and Neptune) are "gas-giants". But what does it mean exactly? Also, can any kind of ...
16
votes
2answers
3k views

What are the disadvantages of parachute+airbag for atmospheric landing, versus rocket-based?

After Sojourner success, repeated by Spirit and Opportunity, it seemed like we had developed a fail-proof system for atmospheric landing for our probes: there's very little that can go wrong with the ...
15
votes
4answers
1k views

Vertical-takeoff, vertical-landing (VTVL) vehicle falling orientation

The SpaceX Grasshopper vehicle (formally a VTVL vehicle) tests have been increasing the height that their tests can climb to before doing the vertical landing. Throughout all these tests it keeps ...

1
3 4 5 6
7