All Questions
1
vote
1answer
16 views
Inclination change to Geostationary Orbit
How is inclination change performed for satellites inserted into GEO?
With most launches performed from spaceports at various high latitudes, it's impossible to launch directly into equatorial ...
0
votes
0answers
52 views
Liquid water on Mars
Scientists believe liquid water to be sporadically located near the equator of Mars. Is the water believed to be above-ground and if so do we know how deep? Or is it just within the soil near the ...
5
votes
2answers
92 views
Schiaparelli 2?
From what I know, space scientists always work on two prototypes just in case something goes wrong. Why wasn't this the case this time? and are there plans for a repeat of this mission soon?
3
votes
0answers
62 views
How long does it take to get into Low Earth Orbit? [duplicate]
I've seen varying times for spacecraft/rockets getting into LEO, e.g. according do the Mercury-Atlas 7 Wikipedia article, it took just over 5 minutes to get into a 259x154km orbit, whereas the Saturn ...
3
votes
2answers
75 views
Burn spare oxidizer or carry it along?
Okay. This is not directly related to actual space travel, but it is semi-related, and definitely a practical, actual problem I face. It's about Kerbal Space Program and SSTO spaceplanes. And I ...
1
vote
2answers
75 views
Juno possible retirement adjustment
Notice: I deeply apologize if I'm missing a Logical Issue to this Plan.
Instead of ending Juno's mission in 2018 by deorbiting it into Jupiter why not follow these steps.
Allow the amount of time ...
4
votes
3answers
294 views
EmDrive compared to flashlight in space
From my (basic) understanding the most impressive thing about the EmDrive is it violates Newton's third law. No propellant is needed, nothing is jettisoned away, yet it, allegedly, accelerates in a ...
3
votes
1answer
61 views
Insight on EDM Schiaparelli's IMU error and subsequent failed landing
Read this SpaceNews article which states,'1 second of Inertial Measurement error' caused the devastation in the Schiaparelli's landing sequence, causing it to free fall for 3.7 kms. What is exactly ...
2
votes
0answers
45 views
New Russian Sokol space suit
According to the pictures of the mission Soyuz MS-03, the crew is wearing a new "Sokol" space suit.
The previous crew was still wearing the 1980 "vintage" KV2 version.
Any information about this ...
4
votes
1answer
80 views
Save energy in plane changing orbital maneuver
I just read about Cassini's upcoming orbital maneuvers where there's a nice animation showing Cassini's orbits. Here's a frame of the animation:
I see a lot of plane changes, i.e. the probe's orbital ...
5
votes
3answers
454 views
Could the solid boosters of SLS be replaced by reusable Falcon 9 first stages?
Is it feasible to redesign the Space Launch System to use a pair of reusable Falcon 9 first stages instead of the five-segment solid boosters now being developed? The reason would be to lower launch ...
3
votes
1answer
86 views
SpaceX ITS - going beyond Mars
Let's assume that Elon Musk's plan to go to Mars is a success and there are several spacecraft which regularly go to Mars and back.
At this point, how feasible would it be to start exploring the rest ...
-1
votes
3answers
156 views
What would be a few challenges to build a landing strip on mars?
So we are spending a lot of money to get things landed vertically. Its a challenge, and obviously tough too.
So here is the idea.
Get to mars. land over there, no need to return to earth (if no ...
0
votes
0answers
64 views
Which programming languages are currently in use at NASA and other space technology workplaces? [on hold]
Which programming language should I learn to go in space technology further or what I do to have a touch of space with development? I want to do something related space but I'm a expert laravel and ...
3
votes
1answer
64 views
Is there a calculation for determining the thickness of a planet's atmosphere?
I'm wondering if there a way to determine how thick (from the surface to the edge of space(karman line)) a planet's atmosphere would be. Assume an earth body like Earth or Mars (not a gas giant). I ...
