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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11
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1answer
257 views

What is NASA doing to improve the supersonic parachute for the third LDSD test?

Last month, on June 8, 2015, NASA ran the second Low-Density Supersonic Decelerator (LDSD) flight test off the island of Kauai, Hawaii. The inflatable decelerator portion of the test was successful, ...
8
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1answer
635 views

Astronaut distance from Earth?

After the Apollo Missions, what is the farthest that any country has sent astronauts into space (distance from Earth)?
3
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1answer
96 views

What exactly are Tindallgrams? (spaceflight related)

The word "Tindallgram" appears in three posts: this answer to How complex was the math and physics necessary to place Apollo 11 on the moon? What is a “Lear Processor” and how did it work? this ...
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2answers
2k views

What exactly were the controller roles in the Apollo go/no-go calls?

In the Apollo era, whenever there was a significant event about to occur, the flight director (I can recall the voice of Gene Kranz) would do a sort of go/no-go "roll call". He would call off names ...
8
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1answer
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Is this really the Saturn V computer only, or are there other systems here as well?

The BBC News article Apollo in 50 Numbers; The Technology shows an image of the Saturn V's computer along with the caption: The Saturn V's computer was probably the largest computer ever blasted ...
2
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1answer
110 views

How exactly does this Apollo astronaut's tool work? What was it called?

The BBC News article Apollo in 50 numbers: Weights and Measures shows the following photo with the caption: The astronauts brought back more than 360kg (790lb) of Moon rocks for study on Earth (...
4
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2answers
102 views

Why are images from DSCOVR EPIC unavailable for certain dates?

I am in love with the images available at https://epic.gsfc.nasa.gov/ taken from the DSCOVR satellite. I am curious though as to why some dates are unavailable to select. The calendar date picker ...
3
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1answer
121 views

Are NASA's chase planes ever flown by non-astronauts?

NASA maintains a fleet of T-38 aircraft for training and as a chase plane for spacecraft. When used for that latter role, were the T-38s ever flown by non-astronauts?
5
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2answers
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Apollo Mission Control Room 2, how do these decimal number displays work?

In a recent question there was a link to this arsTECHNICA page. One of the pictures of digital clock displays: How do these decimal number displays work? I guess there are assembleys of a mask with ...
3
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2answers
181 views

Will NASA put astronauts into a polar lunar orbit? If so, how?

The NASA news item New Space Policy Directive Calls for Human Expansion Across Solar System says: New Space Policy Directive Calls for Human Expansion Across Solar System and the administration is ...
16
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3answers
2k views

What missions could be done with Orion on Falcon Heavy?

Orion is being developed in tandem with the SLS. But Falcon Heavy is scheduled to fly earlier, early 2015, and be cheaper. So I wonder what kind of missions Orion could do with FH. Could it for ...
1
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1answer
243 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, ...
6
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1answer
199 views

Did NASA distinguish between the space shuttle cockpit and flight deck?

NASA used both terms on their website, Cockpit and Flight Deck. One answer on Aviation SE Cockpit vs Flight Deck?says there is a difference between the two. Did NASA use the terms interchangeably, ...
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2answers
688 views

Apollo Mission Operations Control Room 2 display, what do these numbers indicate?

There are some really beautiful photos in Ars Technica's NASA’s restored Apollo Mission Control is a slice of ’60s life, frozen in amber See also NYTimes' NASA Reopens Apollo Mission Control Room ...
5
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2answers
299 views

Why does only SpaceX release every stage of rocket launch for the public viewing?

What I mean is SpaceX telecast every stage of rocket launch. But in NASA and ISRO, they just telecast rocket ignition launch. ISRO and NASA never does this thing why so?
2
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1answer
468 views

Are there any atheist or agnostic American astronauts, past or present?

Are there any atheist or agnostic American astronauts, past or present? If no was this policy? (If no how did that happen and is there a policy going forward?) Yes these are three questions but they ...
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107 views

CAPCOM Console at Mercury Control Center; what does “Desired Retrofire Setting” time display mean?

Wikipedia's Cape Canaveral Air Force Station page links to the image Alan Shepard in Mercury Control Center (shown below). The console has two large digital time displays. One is dedicated GMT but ...
7
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0answers
61 views

Why did GRACE mission have launch window?

GRACE mission which was launched on March 17th, 2002 had a 10 minutes launch window. The mission was to launch a couple of earth observation satellites. And interestingly, NASA's GRACE Launch Press ...
21
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1answer
7k views

Why did NASA wet the road in front of the Space Shuttle crawler?

In this video, at the 6:25 mark, you can see a truck drive in front of the crawler, spraying water on the gravel ahead of the treads. Why did they do this?
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1answer
120 views

What “flight-ready version” of the Lunar Module is in a museum on Long Island, NY?

Ars Technica's Via the BBC, find out how Apollo 11’s Eagle actually landed says: I've also learned things about the Lunar Module itself, including that it was made nearby on Long Island, where a ...
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0answers
166 views

How will NASA know for sure if its “Good night, Kepler” instruction was correctly and completely executed?

The NASA News item Kepler Space Telescope Bid ‘Goodnight’ With Final Set of Commands says: On Thursday evening, NASA’s Kepler space telescope received its final set of commands to disconnect ...
5
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1answer
214 views

What information was stolen from JPL during the Raspberry Pi hack?

The Engadget article A rogue Raspberry Pi helped hackers access NASA JPL systems highlights an incident where a networked Raspbery Pi at JPL was used to gain access to several other networks, ...
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4answers
2k views

What's inside NASA N911 Shuttle Carrier Aircraft (SCA 747)?

The Wikipedia article mentions that NASA's Boeing 747 Shuttle Carrier Aircraft (SCA 747) have the upstairs first class seating, and the rest of the plane was stripped bare. It doesn't mention ...
11
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3answers
651 views

What would be the configuration and performance for Saturn V with all stages RP-1/LOX?

Saturn V had RP-1/LOX 1st stage with 5 F-1 rocket engines. The 2nd and 3rd stage used LH2/LOX J-2 rocket engines, 5 and 1 respectively. At that time NASA had an advantage to launch heavy payloads ...
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1answer
687 views

Moon Exploration Before the Apollo Missions? [closed]

I'm watching the British movie The First Men in the Moon and it got me wondering if it was scientifically possible to have sent humans to land and explore the moon (or even just orbit) before the NASA ...
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1answer
63 views

Non-biological end effectors (hands) in spacesuit design

Designing the 'end effectors' or gloves of a spacesuit is notoriously difficult. Hands have are extremely flexible and are the primary interface that humans use to interact physically with the world. ...
6
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1answer
316 views

What is the Trump-era path to deep space?

Starting with George W. Bush, the presidents of the United States have presented an ambitious plan to the public to attain human travel of deep space. Bush's Vision for Space Exploration, announced in ...
6
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1answer
337 views

How well could the ISS attitude control system detect periods of astronaut activity?

The question Why doesn't ISS start to spin if people walk inside? is a good one partly because it has attracted several good, informative answers. One of them is particularly intriguing because it ...
2
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1answer
132 views

Where would one deploy deep space atomic clocks?

Space.com: NASA IS LAUNCHING A GPS SYSTEM FOR SPACE NASA/JPL news: Five Things to Know about NASA's Deep Space Atomic Clock NASA mission pages clock NASA Deep Space Atomic Clock Fact Sheet The first ...
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1answer
155 views

Does NASA no longer own a “Vomit Comet?”

This Wikipedia article seems to suggest that NASA no longer owns an aircraft capable of simulating weightlessness, and that such astronaut training is now contracted from a private company. Can this ...
2
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1answer
1k views

What are these giant NASA boxes?

In this answer I saw Figure 35 of the encyclopaedic ISS Interface Mechanisms and their Heritage and from the link I saw Figure 37, and I've included both below (click for larger size). What are these ...
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2answers
106 views

What is the US president talking about re US/Japan dramatic expansion of military(?) cooperation?

According to the Bloomberg article Japan Astronauts to Soon Join U.S. in Trip to Mars, Trump Says: The U.S. and Japan will “dramatically expand” their cooperation in outer space, with missions to ...
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5answers
7k views

What are the benefits of cryosleep?

NASA is working on a so-called 'Cryosleep Chamber', but why do they need it so badly? There must be a lot of benefits attached to this technology..
3
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1answer
351 views

Why are JPL using this expression to emulate Schwarzschild orbits?

From the documentation ”Formulation for Observed and Computed Values of Deep Space Network Data Types for Navigation ” expression 4-61 on page 4-42 it can be seen that JPL uses the following ...
3
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1answer
153 views

How radioactive might the Moon's surface water be? Could it be unsafe to drink?

NASA Chief Scientist Jim Greene asks: Can we go (to the Moon) and drink the water? The source of the water in this case would be ice deposits to be found in permanently shaded areas on the Moon. ...
14
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1answer
533 views

How did NASA's Deep Space Network encode and broadcast music to Opportunity?

@Ingolifs's answer to the question What was the last message to Opportunity today (13 Feb '19)? quotes ArsTechnica's Opportunity did not answer NASA’s final call, and it’s now lost to us: Late ...
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1answer
83 views

What just didn't happen with NASA's Moon-to-Mars directorate?

The Spacenews.com article Sirangelo leaves NASA after exploration reorganization scrapped says: WASHINGTON — A former space industry executive who joined NASA to guide its revamped lunar ...
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0answers
20 views

Where will BioSentinel be relative to Earth while running experiments?

The Space.com article In 2020, NASA Will Send Living Things to Deep Space for First Time Since Apollo describes (among other things) the BioSentinel spacecraft, and links to a NASA BioSentinel fact ...
3
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1answer
446 views

Why has NASA shunned the worm logo?

I love the NASA "worm" logo. It's a futuristic, stylish rendering of the agency's acronym. But they "retired" it in 1992. WHY??? It was replaced with NASA's original logo, the "meatball": Not be ...
7
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2answers
643 views

Why was Houston selected as the location for the Manned Spacecraft Center?

NASA's Manned Spacecraft Center in located in Houston, Texas. What were the site selection criteria, and what contenders were there other than Houston? The center is named for Lyndon B. Johnson. He ...
10
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1answer
753 views

Is there a realtime, uncut video of Saturn V ignition through tower clear?

"Hi, I'm Organic Marble and I'm bad at searching Youtube." Inspired by this question What event determined the transfer of control from Kennedy Space Center to Houston?, I'd like to watch a 1:1 (...
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2answers
238 views

What event determined the transfer of control from Kennedy Space Center to Houston?

Launches at Kennedy Space Center in Florida were managed by the on-site launch control center. At some point in the mission, authority was transferred to the mission control center in Houston, Texas. ...
3
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1answer
126 views

Why did the number of recovery ships decrease with time?

This NASA page names the various ocean ships that have helped recover NASA spacecraft. There is a general trend that later missions used fewer ships. Read the link for details, but here are some ...
20
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1answer
4k views

What were the “pills” that were added to solid waste in Apollo 7?

In the BBC News Worldservice podcast 10, 9, 8, 7: The dramatic missions that made the Moon landing possible told by retired astronaut Nicole Stott (Expeditions 20, 21, STS-128 and STS-133) after ...
3
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1answer
147 views

Current and near-future space suit odor reduction technology

Fox News' Bill Nye says Mars colonies won't happen: 'Are you guys high?' gives some highlights of science educator Bill Nye (The Science Guy)'s thoughts on Mars, moving there, living in artificial ...
4
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1answer
120 views

Did NASA have a term for the “sky” during the Apollo missions

Did NASA have a distinct word to describe what the Apollo astronauts saw when they looked at out at the stars, when traveling between the Earth and the Moon? Sky does not seem right, as that word ...
9
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1answer
2k views

What do astronauts do with their trash on the ISS?

Astronauts often stay more than a year on the ISS, they produce trash like any other human. Is there like a limit that they may produce ever day or maybe some measures were put in place to reduce the ...
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2answers
67 views

What is the connection (if any) between the new Artemis mission and the two Artemis spacecraft (Themis-B, -C)?

It has been announced that the culmination of Space Policy Directive 1, the goal to land Americans and specifically the first woman on the Moon, at it's south pole in 2024 will be called "Artemis". ...
10
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1answer
391 views

Was there any period of time when other U.S. launchers were abandoned in favor of the Shuttle?

The comments to this recent question disagree on whether the U.S. briefly abandoned other launch systems in favor of the Space Shuttle. The Shuttle was designed to be capable of bringing all U.S. ...
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0answers
71 views

From where do apps that listen to “Kennedy Space Center Communications” get their audio feed?

Watching the Everyday Astronaut video The best places to watch a rocket launch in Florida! near the end there are mentions of some "viewer tweets" including one that caught my eye. Download a ...