Questions tagged [nasa]

Questions pertaining to activities of the National Aeronautics and Space Administration, a United States government agency that deals with space exploration and research.

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2answers
7k views

Can I be a NASA astronaut as a 5 foot 6 inches 16 year old Bangladeshi girl with eyesight problems?

I'm a 16 years old Bangladeshi girl. I want to be a NASA astronaut. Currently my height is 5fit 6inches and weight is 40kg. I have eyesight problem. Does that matter for becoming as astronaut?
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Perseverance landing and the skycrane [duplicate]

I have a question about the skycrane which helped Perseverance NASA landing. In the image below, why there is not something like fire at the mentioned exhausts (I don't know whether exhaust word is ...
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+50

Download all Perseverance Raw Images

I want to make an archive of all the Raw Images Percy will make during her mission. I would love to have separate folders for each Sol. The plan is to run a script which then grabs the images from the ...
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1answer
184 views

Could Chuck Yeager ever have qualified as an astronaut?

Chuck Yeager was a legendary U.S. Air Force test pilot and the first person to break the sound barrier. He never earned a college degree, although he did finish one year at the Air War College. This ...
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1answer
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How would someone go about proving that every single fact that we know about the universe is really a fact? [closed]

I will tell my wife known facts about the universe, and she will then tell me “well that could be fake how do we really know”. Even after explaining all the telescopes and other tools we have to find ...
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1answer
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How does the Perseverance Rover store/process large quanties of images?

Dave Gruel (EDL Cam Sute Lead) mentioned on the surface update press conference (22 Feb) that that they collected 30GB of information, including 23,000 images. Where did this information go? Wikipedia ...
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How much open source is the Apollo program today?

What percentage of NASA's Apollo program is considered to be open source as of today? I mean if I wanted to replicate a lunar mission from scratch exactly the same way they did it, regardless of the ...
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3answers
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Did mission control track Perseverance in real time during its landing?

I have read that the signal that is transmitted from the rover near Mars to Earth could be delayed for over 5-10 minutes. But NASA's tweet says they are tracking everything in real time. How is this ...
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4answers
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Why does the Perseverance Rover do sample caching?

As glad as I am that Perseverance's landing was successful, I'm a bit confused as to why there appears to be so little science equipment aboard the rover (by volume) and why the mission seems to be ...
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2answers
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What happened to tripropellant rockets?

IIRC, tripropellant rockets can deliver superior performance compared to bipropellant rockets (at the cost of added complexity). Now, I know that there is the Li/H/F combo, but it isn't used because ...
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3answers
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Why won't NASA show any computer screens?

This question was inspired by yesterday's NASA video stream of Perseverance landing on Mars (congratulations). I like watching rocket launches, they are really awe-inspiring, even if it's just a SN9 ...
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0answers
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When NASA spacecraft arrive at Mars, is Mars always always above the horizon in the US?

Writing How long did the plasma blackouts of Perseverance's signals to MRO and direct-to-Earth last during its seven minutes of terror? I noticed that Mars was high in the sky over the Green Bank ...
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How exactly are the CaSSIS and HiRISE groups “very much working together right now in the scientific field”?

The BBC's CaSSIS mission: The camera capturing Mars' craters and canyons includes the curious reference: The instrument has a strong colour capability so the team combines its findings with those of ...
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1answer
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what would happen if there were windmills in space? [closed]

If there was a windmill in space and you spun it, would it spin forever creating infinite energy? or would it somehow slow down or not create energy? if instead of wind you used magnets to spin the ...
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Are there now established classes of solar-electric powered spacecraft?

The NASA.gov press release NASA Awards Contract to Launch Initial Elements for Lunar Outpost says: NASA has selected Space Exploration Technologies (SpaceX) of Hawthorne, California, to provide ...
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Open source hardware at NASA

Given NASA has its open source software repository, I can not really find its open source hardware counterpart so I suppose such a thing does not exist. Is that true? The 3D models site (GitHub mirror?...
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1answer
144 views

Does the Juno spacecraft have an “open signal, by design”?

The click-bate title'd Space News article China quietly used NASA’s Jupiter probe to test its deep space network contains the quoted material below. Everybody listens to everybody else's spacecraft's ...
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What is your experience with using NASA's Core Flight System (cFS) in a subordinate system?

Has anyone used NASA's cFS on board a discrete system mounted on board an existing satellite/rover? What is your experience like? Have you encountered any difficulty forwarding TM/TC and managing ...
4
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1answer
358 views

Ultra Safe Nuclear Technologies (USNC-Tech) has delivered a design concept to NASA, but what does NASA consider a “design concept” to be?

The 19-Oct-2020 Press Release Ultra Safe Nuclear Technologies Delivers Advanced Nuclear Thermal Propulsion Design To NASA begins: SEATTLE, Oct. 19, 2020 /PRNewswire/ -- Ultra Safe Nuclear ...
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NASA Project Management Wall Chart

As an Undergraduate student and new to the field of Space mission design and systems etc, I want to know is there any detail explanation with examples of the jargon terms mentioned in the chart below? ...
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How do all the struts and crosses in the Orion Crew Capsule Service Module work together? What do each of these parts do?

The BBC's Europe to make more hardware for American Moon missions says that three more service modules for the Orion Crew Capsule have been ordered by NASA, bringing the total desired to six. I ...
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1answer
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How many politically appointed positions are there at NASA in total?

28-Nov-2020 Aviation Week's NASA Chief Plans To Step Aside Under Biden quotes former NASA director Jim Bridenstine saying: “The right question here is ‘What’s in the best interest of NASA as an ...
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1answer
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Is it cheaper to build a habitat on the surface of the moon or dig a hole into the moon and build a habitat in there?

There was a space competition a while ago that had teams design the best habitat for either Mars or the Moon, and the winning design was a cone-like building using a large 3D printer. I saw it and ...
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1answer
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Why wasn't there a 2nd attempt for the Viking-DS (VDS) test payload before the real Viking 1 and 2 were launched?

Per Gunter's Space Page for Viking-DS (VDS): Viking-DS or VDS (Viking Dynamic Simulator) was a vehicle evaluation payload, which was to represent the dynamic properties of the Viking spacecraft. It ...
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Why would a launch request for a gravitational assist at Mars specify a DLA (Declination of Launch Asymptote) of 30 to 32 degrees?

The recent intriguing question Why is NASA proposing an EMEJ (MEGA) trajectory for Europa Clipper instead of EEJ? quotes "A launch service request... recently put out for Europa Clipper to do a ...
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1answer
136 views

Was the famous SPICE package of programs, utilities and data kernels named after “Melange” found on the planet Arrakis?

This question is NOT about a fictional planet: This question is about NASA JPL history and the naming of SPICE. It is not primarily about the fictional planet Arrakis nor the fictional drug Melange ...
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1answer
218 views

How much will it cost MrBeast to send a HDD alongside the new moon rover?

I saw this mrbeast stream where you could send a pic to the moon and he promises that he has made arrangements with nasa that they (nasa) will pack it up with a new rover to the moon to be launched ...
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2answers
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How was an emergency landing site at Diego Garcia used during the Apollo program?

On the current Starlink mission as the 2nd stage passed over the Indian Ocean I heard mention of contact with a ground station at Diego Garcia. Checking that article I found the subsection Space ...
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2answers
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Why is the Orion spacecraft so big?

The Orion spacecraft which is to be used for the Artemis missions will be rated for 6 astronauts. Why so many? Given the "political" assignment is to put "a woman and another man to the ...
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3answers
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Why did it take so long to notice that the ozone layer had holes in it? Which satellite provided the data?

Wikipedia says: The discovery of the annual depletion of ozone above the Antarctic was first announced by Joe Farman, Brian Gardiner and Jonathan Shanklin, in a paper which appeared in Nature on May ...
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“NASA's Europa Clipper has been liberated from the Space Launch System” How would the “physics” of a Starship-based mission differ from SLS?

The Hill's NASA's Europa Clipper has been liberated from the Space Launch System is quite an illuminating read about the politics of space launch. However, I noticed that it also says: Both the ...
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How many cubesat U's is CAPSTONE really?

Wikipedia sez: The orbiter is a 12-unit CubeSat but looking at the images in the new NASA video NASA 2021: Let's Go to the Moon I see artwork that shows Capstone as a square-based prism with the ...
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1answer
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Besides landing several folks on the Moon and returning them safely to the Earth what criteria did Human Landing System proposals to NASA meet?

The new NASA video NASA 2021: Let's Go to the Moon shows artwork for three very different spacecraft sitting on the lunar surface with the overlain caption Selecting A Human Landing System "...
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JAXA/NASA astronauts on a Shuttle mission; was it like dual citizenship/joint appointment or did one agency take precedent?

Professor and former astronaut Takao Doi does many things, including being a Space Shuttle mission specialist, an amateur astronomer and discoverer of two supernovae 2002gw IN NGC 922 and Supernova ...
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How does one throw a boomerang in space? Does it return?

From today's BBC's Japan developing wooden satellites to cut space junk: "We are very concerned with the fact that all the satellites which re-enter the Earth's atmosphere burn and create tiny ...
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1answer
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NASA design handbooks and specifications

Does anybody know the designations, publication names, etc. for the design standards which NASA uses for space flight hardware? I’d like to add these resources into my engineering library.
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Why doesn't NASA release all the aerospace technology into public domain?

NASA is a publicly funded US governmental agency, yet it does not seem to release all the technology it develops into public domain for people being able to study it and learn from it. For instance, ...
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1answer
109 views

How redundant are Orion's power and data units (PDUs)? Doubly? Quadruply? If so, why?

In the news today: NASA to skip repair of Orion electronics unit NASA will fly Orion deep-space crew capsule ‘as is,’ despite failed component; The agency claims there is enough redundancy in the ...
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1answer
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What skipped test on Genesis would have detected the backwards-inserted accelerometer which didn't deploy the parachute?

What precautions are planned to prevent samples returned from Mars crashing and releasing organisms on Earth? and this answer to Why would bringing samples from Mars back to Earth be a “civilization-...
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Is there a publicly available inventory of things sent to the ISS?

I spent some time looking through NASA datasets and news articles, and couldn't find anything, so I'm hoping that someone in the community will know better than I do: I'm trying to understand what the ...
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2answers
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How did the Kepler Telescope reach its orbit?

The Kepler Telescope was (is) in a heliocentric Earth trailing orbit, but I want to figure out how it was able to reach this orbit exactly. It was launched on a Delta II with 3 stages and I studied ...
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2answers
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Did an astronaut on the Moon ever fall on his back?

I am curious to know if an astronaut on the Moon ever fell backwards and landed on his back. I have seen many photographs and videos of astronauts who accidentally tripped or lost their balance and ...
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1answer
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What prompted NASA to establish a KSC SWAT Team?

Based on this question, it looks like KSC has not only its own police department (which is fairly common for large facilities, even things like universities) but also a SWAT team, which apparently was ...
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1answer
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Did NASA have black doctors around 1960?

In the 2020 TV series "The Right Stuff" a lot of changes are made for dramatic effect. The show has a black doctor working at NASA during the Mercury programme, and he seems to be pretty ...
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1answer
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What force do the armed guards guarding the Crew-1 crew belong to?

In the comments to the question Why were the SpaceX Crew-1 astronauts backed up by guards with automatic weapons?, the question was raised what force the guards in the photo belong to. In particular, ...
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1answer
292 views

Why is NASA sending wavy grousers to Mars?

In this answer to What are the lines on the wheels of the Perseverance rover called? Are they different than Curiosity's? and in sources linked therein we've learned that the lines across the business ...
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Did NASA director Jim Bridenstine really make sure that Artemis gets done in a way different than how the US “House of Representatives put forward”?

update: Aviation Week November 8, 2020: NASA Chief Plans To Step Aside Under Biden In the "Angry Astronaut" video NASA'S Lunar Gateway Announcement - This REALLY matters to Artemis, SpaceX ...
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Why it's news that SOFIA found water when it's already been found?

Back in 2008, India proved water on moon. India's ISRO spacecraft Chandrayaan-1 released the Moon Impact Probe (MIP) that impacted Shackleton Crater, of the lunar south pole, at 20:31 on 14 November ...
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1answer
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Why does the Sagan-Drake pulsar map have a circle (negative/blank) near the center?

(click to enlarge, source: WikiMedia) If you look carefully near the center, each of the pulsar line segments have a gap at a specific radius. I can't find any mention of the meaning of this. Any ...
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2answers
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How do US citizens vote in space?

Astronaut Kate Rubins tweeted that she has voted while being on the ISS: How does that work? Did she have some paperwork with her that she can send down to earth with a spacecraft soon? The ...

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