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Questions tagged [science]

Questions regarding the systematic study of the world through observation and experimentation.

14
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1answer
2k views

Shorten trip to Mars

As someone adviced me in a previous thread, I want to ask a question related to Can you refuel chemical rockets to increase the speed?. If the numbers in this comment and this comment of @...
2
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1answer
134 views

What are the ranges a human can survive AND breathe in?

I am writing a space sci-fi short story series, and I am trying to figure out what the range in pressure a human can survive AND breathe. I am trying to find the lowest, safest air pressure a human ...
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2answers
95 views

What benefits would exist for a space station in Lunar Cycler over a LEO or HEO orbit?

Would a station in a stable Lunar Cycler orbit have any large benefit over a LEO or HEO orbiting station? I know the mission-to-mission cost of getting to/from such a station would be more but I ...
0
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2answers
93 views

What affects the flight of rockets? [closed]

I need some help on my science experiment. I have tried researching it on the internet but nothing seemed to have answered my question. I am currently doing a science fair project on "How does Rocket ...
13
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1answer
2k views

Does SpaceX put Falcon 9 2nd stages carrying geostationary satellites into a temporary sub-orbital trajectory before the second burn?

I watched the latest SpaceX launch of Intelsat 35e on 05 July 2017 carried by their Falcon 9 rocket into geostationary orbit, and noticed some confusing telemetry data. Telemetry just before the ...
2
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2answers
113 views

What science could be performed by an extra-solar probe?

An earlier question asked whether there were any planned missions outside the solar system, which made me think of this question. What would the scientific benefits be in sending a probe outside the ...
5
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1answer
1k views

Using large orbital launchers as sounding rockets. What are the opportunities and challenges?

Instead of launching a payload to orbit, consider one of the big launchers of today (like Atlas V, Ariane 5, Falcon 9, Proton) being used as a sounding rocket for astronomical observation purposes. ...
2
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0answers
92 views

Strategies for scientific objectives aboard small lunar orbiting satellites [closed]

We are designing a small satellite lunar mission. In the preliminary design submitted for approval, most of the focus was on technological demonstration of acquired COTS hardware, flight systems, ...
27
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2answers
3k views

How can a sounding rocket accurately take the temperature of the atmosphere while flying through it at high speed?

A sounding rocket is a rocket that ascends into the high atmosphere in order to take all sorts of measurements so we can learn more about the upper atmosphere. They don't go into orbit, so they can be ...
25
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10answers
7k views

What were the most inaccurate or accurate things in “The Martian”?

I am curious what the most accurate, versus most inaccurate things that were depicted in the space movie, "The Martian"? I thought the part where he punctures his suit and jets over to the rescue ...
4
votes
1answer
370 views

Scientifically useful measurements from low-budget high-altitude balloon flights

Let's say, hypothetically, that I'm thinking about launching a high altitude balloon. I want to contribute to the bank of mankinds' knowledge, not just take pretty pictures. My (notional) budget is ...
5
votes
1answer
469 views

How much of Akatsuki's original mission will be possible?

In December of 2010, Akatsuki was meant to enter orbit around Venus, but the insertion failed. They now have a new plan to put Akatsuki into orbit in December 2015, but the orbit will be different. ...
5
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1answer
259 views

How do scientists detect amino acids in space?

In this section of a wiki article it talks about scientist finding amino acids in outer space, or at least complex molecules and such. Also this video says how there is alcohol in Sagitarius B2. How ...
3
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0answers
223 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 (...
20
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1answer
676 views

Extending Use of ISS Beyond End of Mission

Given that the ISS will eventually come to the end of its mission (currently extended to 2020 (source)), would it be possible to re-purpose it for non-human space flight? To clarify: does the ...
13
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1answer
305 views

Did Biosphere 2 make any discoveries later used on manned space flight?

Biosphere 2 operated as a closed entity for study of closed ecological systems for stints between 1991 to 1994. Given that the ISS has been continuously inhabited from 2000 to the present day, it ...
14
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1answer
148 views

Are there any (free) online data archives for data from instruments on Soviet / Russian missions?

There are actually plenty of ftp-servers etc. in the U.S. and Europe, which host raw and pre-processed data of various instruments from old space exploration missions. Usually it is for free, although ...
11
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2answers
2k views

What are the “everyday” technologies that are a byproduct of the Apollo program?

There is an ongoing debate about the pros and cons of space exploration. One of the oft-cited pros is integrating the spin-off technologies developed for space into everyday life. Did the research ...
14
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4answers
3k views

How feasible is it to harvest isotopes of Helium or Hydrogen from the gas giants?

The gas giants in our solar system have abundant quantities of Helium and Hydrogen. Is it possible to harvest these resources there? Does NASA have any plans to build some permanent base in space for ...
26
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3answers
2k views

What science are the Voyager missions still doing after so many years away from the Solar System?

I know that the Voyager missions were launched years ago, and are quite a long way out there. With the problem of communications taking forever to get to the probe and back, what are we currently ...