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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1answer
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Is NASA's Deep Space Network possibly a backup link for China's Zhurong rover?

While the Tianwen-1 orbiter will dispense commands to the Zhurong rover, the Mars Express orbiter of the European Space Agency will serve as a backup. Wikipedia Since Mars Express normally ...
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Does NASA yet have an official history of the Shuttle?

NASA has official "histories" of many of their past programs. These are more about people and decisions, not technical details. This New Ocean: A History of Project Mercury On the ...
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Will there be a command moratorium for Mars spacecraft again in 2021?

About every two years, Earth and Mars are on opposite sides of the Sun (a Mars-solar conjunction). Plasma expelled from the Sun can interfere with radio transmissions between Mars spacecraft and the ...
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Do sounding rockets need a license to be launched?

I am just curious to know if any kind of license is needed to launch a sounding rocket? If yes, then what kind of licenses are there for sounding rocket launches.
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Why do we see performance drop in the aerospike engine in Mach 1 to Mach 3 speed?

While reading about aerospike engine here https://www.hq.nasa.gov/office/pao/History/x-33/aero_faq.htm I read that (Question 11 in the FAQ) due to the slipstream turning into the nozzle region we ...
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How can they be so sure that Dragonfly will “freeze to death” as opposed to simply (and eventually) running out of RTG power? (238Pu decay)

tl;dr: "...will probably freeze to death...before it runs out of power..." If power keeps it from freezing to death and it hasn't run out of power, why would it freeze to death? Space.com's ...
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What were the sizes of the roll-on cuffs called?

Early astronauts used roll-on cuffs to collect their urine. I remember hearing once that these cuffs were available in 3 sizes, but the NASA had to change the names of the sizes because astronauts ...
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In their first 100 sols which NASA Mars rover drove the furthest and which one the least?

It seems we've passed the 100 day/sol mark for Perseverance. Perseverance and Curiosity are comparable in designs but have had significantly different short term goals; Curiosity was the first of it's ...
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How much did NASA pay Roscosmos for the Soyuz to provide assured crew return services

The STS orbiter wasn't able to stay on orbit for very long, and the ISS had an SOP of having a return seat for each body on the station, so during the years of the Shuttle performing crew rotation ...
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What DID NASA do with “the world's largest quantum computer”? (re question from 2013)

@TildalWave's 2013 question What does NASA plan to do with the world's largest quantum computer? has several answers, including one in a comment: Maintaining this computer is expected to bring ...
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What qualifications and requirements do you need to go to the moon?

I've dreamed of shooting for the moon, but I'm not sure how, if any former NASA Recruitments or scientists see this, please tell me what I need to do. Question: What were the qualifications to be ...
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Could magnets be used to protect spacecraft? [duplicate]

Could magnets or a magnetic wrap like material be used to shield sensitive electronic components (or any vulnerable part) of a spacecraft from cosmic rays? The earth's magnetic field has a strength of ...
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Where is the uncropped version of this cool Ingenuity navigation camera GIF?

Ingenuity's Shadow During Third Flight shows the GIF below which is made from cropped bits from several downward-looking images from Ingenuity's navigation camera, stretched so that the ground is ...
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How does a command sent to a rocket or rover look like?

I think the answer is quite clear. Let's say when Mission Control decides to let Perseverence move forward for 3 seconds with a speed of 10 (whatever..) What syntax would this command have? Im ...
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New Horizons current mission

Last week, New Horizons crossed the 50 AU milestone,i.e. approximately 8 billion km (5 billion miles) from Earth. That implies that it must still be in the Kuiper belt, which is 30 AU- 50 AU from the ...
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Who said, “Take that, Jezero!” during the Perseverance landing?

During the Perseverance landing broadcast, many of us heard a voice call out, "Take that, Jezero!" Every article I can find simply identifies the speaker as "a controller" (or just ...
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What is the exposure time of the navigation camera on Ingenuity?

Today's first image from Ingenuity's navigation camera shows a remarkable lack of motion blur in the shadow of the rotors, despite them turning at 2600 RPM: The factsheet tells us: Navigation (NAV) ...
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How are operational procedures developed?

In anticipation of the upcoming Ingenuity flight, I have found myself wondering how procedures are developed by spacecraft operators. How is a go/no go procedure created? How does the team create a ...
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Why was Redstone Arsenal specifically chosen for post-war rocket development?

We have had questions on the origin of JSC, KSC, White Sands, and Wallops Island. Today is MSFC's turn. After World War II, many of the officials of the German rocket program -- including leader ...
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What became of Vista-III decision theoretic telemetry display system from the 1990s?

I'm reading a paper [1], dated 1995, which describes a telemetry display system named Vista-III which was in development at the time. "We will be validating the new functionalities and expect the ...
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Origin, artist, and original purpose of this unusual NASA image from 1996 or earlier? (possibly related to Clementine)

Two astronomy questions below relate to Clementine and poking around I found Ice on the Bone Dry Moon which was Written by Paul D. Spudis, Lunar and Planetary Institute, Houston, TX, Deputy Leader of ...
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Are there still no mission updates for Perseverance like there are for Curiosity?

Mission updates for the Mars Curiosity rover in the first months of the mission starting in August 2012 happened almost every day with detailed information about drive planning, the use of the ...
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Are the Perseverance rover's “drivers” working on Martian sols or Earth days right now?

Business Insider's What is it like to drive the Perseverance rover remotely? A NASA engineer explains the challenges of piloting the vehicle's journey across Mars. includes the following discussion of ...
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How much of NASA's annual budget goes to launch

I've been trying to figure out how much of NASA's budget goes to launch costs. I would also be interested in the same question for the global space market. What I've tried I started with a simple ...
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How does NASA build acclimatisation into mission plans for astronauts?

I was reading an article today where NASA admits some level of culpability contributing to a crew issue on SkyLab in 1973. Nasa accepts that mission planners had not given the crew the typical period ...
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Identify this Mars helicopter prototype and when and where it was built and tested?

The new NASA video Things are really looking up (on Mars) is a short set of vignettes in anticipation of the Ingenuity helicopter's first tests on Mars. Below is a screenshot of a historical file ...
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Why did NASA divide Expedition 13 into two parts?

Up until ISS Expedition 12, all are single parts, but why did NASA divide Expedition 13 into two parts?
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How can NASA be prevented from becoming too dependent on one rocket company or vice versa?

Wouldn't it be an unhealthy situation if NASA were to become too dependent on one company, for instance the only one that could launch heavy rockets ? And also, if a private rocket company's existence ...
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What typically happens to the Acting NASA Administrator when a full Administrator is approved by the Senate?

The NASA Administrator is the agency's leader, and (along with the Deputy Administrator) is appointed by the President and confirmed by the Senate. It has been common for each President to choose a ...
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Orbit design guidelines for rendezvous with ISS?

Are there guidelines for orbit design if you're launching a payload for delivery to the ISS? Altitude, maybe phase angle constraints? Orbital approach maneuvers, maybe? I've figured out how to control ...
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Looking for a live audio-only stream of NASA TV or JSC/ISS loops

I recently installed an old iMac G3 machine just for the fun of it, but it doesn't play YouTube videos for obvious reasons, so I can't use it to play NASA TV in any form. However, audio streams is ...
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Does NASA consider Joseph Walker to be an astronaut?

Joe Walker was a NACA and NASA test pilot who flew the X-15 aircraft twice above 100 km, which FAI uses their definition of an astronaut. Flight 90 achieved 106.01 km, and flight 91 reached 107.96 km....
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How do the small radio receivers on space probes catch enough of a signal to communicate with us?

From Scientific American, March 2021: Optics. Traveling Photons. Joanna Thompson. Much of today's space communication relies on radio signals. But these diffract and broaden as they travel, as ...
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Can I be a NASA astronaut as a 5 feet 6 inches 16-year-old Bangladeshi girl with eyesight problems?

I'm a 16-year-old Bangladeshi girl. I want to be a NASA astronaut. Currently my height is 5 feet 6 inches and weight is 40 kg. I have eyesight problem. Does that matter for becoming an 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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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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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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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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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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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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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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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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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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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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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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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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