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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7
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4answers
2k views

How does somebody build a GPS satellite?

What materials and coding would be needed? And what are the necessary instructions should someone follow? I heard that you don’t need to be apart of NASA to build a satellite, but it just costs a lot ...
6
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1answer
97 views

Can I find detailed flight parameters of some space mission(s)?

I'm studying dynamic models and creating a mathematical model for spaceflight simulation. I need to check the correctness of my model. Can I find detailed parameters of a spaceflight (say, position ...
3
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1answer
142 views

What nodes were used to send a NASA selfie from Antarctica to the ISS?

The November 29, 2017 NASA video Future-Proofing the Interplanetary Internet says: In a recent demonstration of the technology, NASA sent a selfie from Antarctica to the space station, making ...
2
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1answer
87 views

What GEO relay satellite will the ISS use for end-to-end optical communication with a ground station?

This LEMNOS page on NASA's Explorations and Space Communications site says: The Integrated Laser Communication Relay Demonstration (LCRD) Low-Earth Orbit (LEO) User Modem and Amplifier Terminal (...
3
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2answers
118 views

When will NASA PubSpace really make publicly available most of NASA funded research papers?

The Science Alert article All Scientific Research Funded by NASA Is Available For Free is worth reading and contains several links and quotes. Here is one excerpt: The database is called PubSpace, ...
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3answers
4k views

Where did the famous “end of decade” deadline come from?

In his address to Congress on 25th of May 1961, John F Kennedy committed for the first time to land a man on the Moon and bring him safely back before the end of the decade. But the feasibility ...
4
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0answers
100 views

To what extent was Apollo program training specific to each mission?

In comments and answer to this question, the time it takes to train for an Apollo mission is mentioned several times as a factor on the big rotation of crews. I figure that would actually play in ...
16
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2answers
592 views

Was there any “practical” advantage to having different crews for each Apollo landing?

So, out of the 24 men that went to Moon orbit and back during the Apollo program, just three of them did the trip twice, but landings where always done by a different crew. From the politician's ...
8
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1answer
290 views

What ever happened with that pressure suit design based on elastic tension in contact with skin?

I remember several years ago seeing a pressure suit design based on carefully engineered elastic material in contact with the skin. Instead of pressure on the skin produced by a pressurized gas, the ...
5
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1answer
126 views

What is the mass and power consumption of the COLBERT treadmill?

What do you think is the mass and power consumption of the COLBERT treadmill? Sources are greatly appreciated.
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1answer
166 views

How can GEDI be considered a carbon-monitoring instrument?

EDIT: According to a new, 17-May-2018 item in Science: That NASA climate science program Trump axed? House lawmakers just moved to restore it. Quoted in both Phys.org: NASA program to track ...
12
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1answer
1k views

What is the principle behind Mariner 4's “Solar Pressure Vanes”? In what case(s) would they be effective?

The image below, found in this answer shows four "Solar Pressure Vanes" on Mariner 4. I've never heard of such a thing. I can imagine that it might have been thought to help favor the spacecraft's ...
4
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1answer
197 views

Did InSight take a “mean left” turn on its way to Mars? Is it an out-of-plane maneuver?

In the NASA JPL video NASA Launches InSight to Mars (part 1) after about 14:30 (currently) NASA's new Chief Scientist Jim Green (better photo here) explains: ...
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1answer
97 views

What is/was the IMP team? (related to Mars Pathfinder)

The Astronomy Picture to of the Day for 2000 May 14 titled A Presidential Panorama of Mars credits the panoramic image to: IMP Team JPL NASA but the first link does not seem to work. ...
7
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1answer
826 views

Did the medium range KTM tracking cameras for the Shuttle really have a “150 inch lens”?

The Curious Droid YouTube video How did NASA get those great film shots of Apollo and the Shuttle? found here and linked-to in this comment contains the following passage starting at ...
2
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1answer
78 views

Project Morpheus

This is the NASA tether test configuration of project Morpheus. The image has been taken from this paper. The test is basically to test the NGC and engine performance of the vehicle. Here we find a ...
0
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1answer
221 views

Is NASA's Performance Vehicle Calculator website open for public use?

This answer links to "NASA's Performance Vehicle Calculator" with the link https://elvperf.ksc.nasa.gov/Pages/Query.aspx I've also found the same link in https://forum.nasaspaceflight.com/index....
6
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1answer
314 views

What stole the INSPIRE cubesat launch opportunity, and will there be another?

Doing research for this answer about interplanetary cubesats, I watched the NASA Jet Propulsion Laboratory YouTube channel video CubeSats (live public talk) of a talk by Dr. Andrew Klesh, Chief ...
3
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0answers
107 views

Has budgetary support for Juno been extended, or is it running out?

The Yahoo news article NASA’s Juno snapped another photo of Jupiter that looks like a watercolor painting is a reminder that Juno is generating plenty of data and beautiful images. The Juno ...
7
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1answer
367 views

What is the function of this array of what looks like mirrors on TESS?

The Mashable.com article TESS is about to become your new favorite NASA mission shows a beautiful photo of the TESS spacecraft in a state that looks like it is nearly ready to launch. There is a ...
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0answers
87 views

How does JPL calculate Epochs for generating ephemerides?

How exactly do epochs fit into the computational propogation of data of NASA's Jet Propulsion Laboratory and what methods do they use to calculate the properties of those epochs in the first place? ...
2
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2answers
318 views

What are the louver-like structures on the sides of the Mariner 4 probe?

The COSMOS Magazine article First mission to Mars: Mariner 4’s special place in history July 14, 1965, forever changed the way we see Mars. Tim Wallace looks back at one of NASA’s greatest triumphs ...
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1answer
3k views

LOPG/Deep Space Gateway - What is a cislunar orbit?

Formerly the Deep Space Gateway and now the Lunar Orbital Gateway or LOPG station, is planned for Expedition 1 aka the maiden launch of the SLS. After reading several specifications, to avoid the "...
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Is Curiosity allowed to investigate the subsurface of the “clay unit ” near Mount Sharp?

From the bottom image in this article from september 2016 it can be seen that there was a possible path for Curiosity in the direction of Mount Sharp (Aeolis Mons). At the end of januari 2018 however ...
6
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2answers
97 views

Which space operators public or private, outside of NASA, allow usage of their space imagery?

NASA does not copyright their images and allows usage of their photos for free for many uses. There are a few restrictions on commercial use, primarily to keep current staff out of commercials. ...
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1answer
83 views

Has TDRS-13 officially graduated from “TDRS school” (entered into service)?

According to Wikipedia: TDRS-M, to be renamed TDRS-13 upon entry into service, is an American communications satellite operated by NASA as part of the Tracking and Data Relay Satellite System. The ...
2
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1answer
160 views

Did IMAX pay to have their cameras in space?

There have been several IMAX movies filmed either partially, or wholly while in orbit around the earth. Some of these include the Space Station, Hubble, and several in general about the space shuttle....
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0answers
72 views

Does the TDRS user segment ever provide network functionality beyond being “customers”?

Celestrak's NORAD Two-Line Element Sets Current Data TLE page has many pre-defined categories for quick access for groups of spacecraft that share similar characteristics. I clicked on the ...
3
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1answer
354 views

Is that true that NASA sends their people to some Universities outside of USA in order to hire them?

I’m asking this because, I’m interested to know "does NASA send their people (workers: scientists and engineers) to some Universities outside the USA and not only in USA?" Because, right now I'm in ...
3
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1answer
138 views

Was the Orbit Pavilion triggered by real communications events?

The October 2016 NASA JPL news article Art Turns Public Eyes (and Ears) Toward Space describes an artistic interpretation of the communications between a number of NASA Earth satellites and ground ...
2
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1answer
557 views

Why did Space Shuttle astronauts wear gloves upon reentry?

I read an article about STS 107, in which the crew videorecorded their search for the gloves to put on.
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1answer
252 views

What will the US send to Mars as mentioned in this statement to the press?

The video U.S. planning to send 'something beautiful' to Mars, praises SpaceX shows a statement made to the press yesterday. I've included a transcription based on the closed captions in the video, ...
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2answers
3k views

Would NASA be financially self-sufficient if it could keep all revenues from patents?

I am wondering if NASA could be financially self-sufficient if they kept all revenues from patents of technologies they have developed since the Apollo program. To answer this, I would like to ...
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1answer
115 views

The “live” 3D webpage showing LRO's activity is down, is this temporary?

In my answer to the question "Mapping the moon: how to use the Lunar Reconnaissance Orbiter (LRO) image data?" I include a link to https://lrostk.gsfc.nasa.gov/preview.cgi which is a "real-time" ...
2
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1answer
129 views

Power requirements for NASA's Variable Power Laser Welding Torch

NASA uses a Variable-Power Handheld Laser Torch for their welding in space operations and fixing things in orbit. I've got several questions about this system. Is this system currently available/in ...
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0answers
55 views

Was Houston able to control to the Apollo spacecraft if needed? [duplicate]

Was every aspect of a flight, aside from liftoff, solely the responsibility of the crew? Or was Houston able to command parts of the spacecraft and its computers remotely in an emergency or if ...
7
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1answer
247 views

Disposal pool during RS-25 engine test?

Nasa recently did a test firing of an RS-25 rocket, and released a video of it. Here's a frame grab: Note that pool of water at the bottom right, with a pipe leading to it, and clouds of steam coming ...
-3
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1answer
184 views

Before their disastrous demise, how many missions did Challenger and Columbia fly?

I always grew up thinking that both of those shuttles only flew in one mission and never made it back home. Now, I found evidence that that's not the case.
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4answers
5k views

Were all the switches on the Command Module and LM control panels used during a mission?

Given there are so many switches on the control panels, and they each served a specific purpose, was every single switch used during a mission to the moon (with the exception of the abort switch ...
36
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2answers
7k views

Did the Saturn V rocket have any purely aesthetic features that didn't serve an actual function?

The rocket itself is magnificent, yes, but with so many ins and outs to it, curious if the entire design was solely purpose built, or if there were features specifically for aesthetic purposes.
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2answers
799 views

Why does NASA still use film cameras?

According to this video, NASA still operates some cameras for tracking rocket launches that use film: According to NASA, they even have some film cameras placed around their launch site loaded ...
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2answers
1k views

Did Elon Musk's Tesla Roadster actually launch to space? [closed]

I'm sorry I have to ask this question but I need evidence for a friend. My answer to her that I trust people who specialize in the field to know better than me is 'BS' to her. So to begin... My ...
3
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1answer
489 views

As they were all qualified, how/why were the Apollo Astronauts chosen for their individual missions? [duplicate]

Why did some fly multiple Apollo missions, while others flew only once?
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1answer
248 views

Segways on the Moon?

Looking through NASA Johnson's Flickr I saw this photo. The complete caption is shown below. What are these? How do they work? Are those tractor wheels at the bottom? Why are they orange and so ...
12
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3answers
3k views

Will the January 2018 government shutdown affect the Falcon Heavy launch?

The Falcon Heavy is currently undergoing testing at Kennedy Space Center's Pad 39A, which SpaceX is leasing from NASA. The hold-down test firing, according to the previously-linked article, may occur ...
7
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1answer
479 views

RS-25 Hot Fire Test

Yesterday, NASA Stennis successfully completed a hot fire test of Aerojet Rocketdyne RS-25 a.k.a SSME. It was noted in the webcast before the test started that they were testing the 'engine controller'...
2
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1answer
360 views

Are there rules and ethics to follow in space?

If someone were to go to the moon and set up their own camp. Would NASA and governments be okay with it? Or would they not care? Is there a rule that says I can't do anything to the moon or else ...
4
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1answer
992 views

Where can I find “Space policy directive 1”?

Today, as per the tabloids, President Donald Trump signed the "Space policy directive 1". Where can I find the original/raw document? (I get the gist from the tabloids, but wanted to read the raw ...
3
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1answer
673 views

What are the thrusters present on the side of the Mercury-Atlas launch vehicle?

I just watched a documentary about the Mercury program and was wondering what those "side rockets" (don't know how to call them properly) are for? Further stability or generating some extra thrust? ...
7
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1answer
607 views

Are these experimental stoichiometric NiTi wire mesh wheels made from “memory alloy”? Need to run at certain temperature?

I just looked at this NASA "specials" page; https://www.nasa.gov/specials/wheels/ and watched the two videos linked below. These experimental wheels use a special stoichiometric Nickel Titanium alloy ...