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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57 views

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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(Why) aren't there 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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1answer
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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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1answer
245 views

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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152 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 ...
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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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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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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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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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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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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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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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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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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's CAPSTONE(spacecraft); Spacecraft says: 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 ...

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