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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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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
394 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 ...
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1answer
704 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
586 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 ...
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2answers
209 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. ...
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1answer
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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 ...
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1answer
117 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 ...
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1answer
85 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 ...
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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
143 views

Will NASA put astronauts into a polar lunar obit? 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 ...
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2answers
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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". ...
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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 ...
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1answer
336 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. ...
5
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1answer
195 views

What is this strange, liquid-cooled tube hanging in a wind tunnel?

Near the end of the NASA video Rocket Engine Testing the NASA Way! there is an image that appears to be archival an possibly quite old. It's a long cylinder densely wrapped with what I assume is ...
3
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1answer
101 views

Help identifying this archival NACA/NASA image of a wind tunnel test object

Near the end of the NASA video Rocket Engine Testing the NASA Way! there is an image that appears to be archival an possibly quite old. It's a metal model of a launch vehicle with two very long ...
5
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1answer
297 views

Agena docking and RCS Brakes in First Man

In the movie, First Man, Neil Armstrong and his colleague David Scott, as part of the Gemini 8 program, attempt to dock with the Agena but it turns out to be disastrous as they go into a continuous ...
3
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1answer
95 views

How exactly do the AstroBees implement propulsion and attitude control?

The (currently unanswered) question How does JAXA's “Int-Ball” manage airflow to optimally navigate inside the ISS? shows a complicated set of twelve ducted airflows for that JAXA aerobotic system ...
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1answer
84 views

How did fictional asteroid 2019 PDC get its name?

Gizmodo's NASA and FEMA Will Simulate an Impending Asteroid Strike Next Week The hypothetical discovery takes place in 2019, but what does "PDC" stand for? Perhaps it is another "discovery" by the ...
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2answers
813 views

What is the numbering system used for the DSN dishes?

The title "What is the numbering system used for the DSN dishes?" pretty much sums it up. DSN dishes are referenced by seemingly arbitrary numbers: 14, 55, 36, etc... Do these numbers carry any ...
5
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1answer
154 views

Does America's Birthright Citizenship law apply to the American side of the International Space Station?

In a scenario in which a pregnant Russian woman were to give birth while visiting the International Space Station, and if she were to give birth while on the American side of the ISS, would that baby ...
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4answers
342 views

Has there ever been an astronaut that bailed out on going to space last minute?

I’m just wondering if any astronauts have gotten cold feet last minute and have refused to go into space.
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1answer
247 views

What exactly is a “Green Run test” for SLS that NASA is considering skipping?

The Ars Technica article Rocket Report: A new Delta 2, Blue Origin inks with NASA, a fiery Falcon Heavy says: Boeing seeks to ship SLS core stage by the end of 2019. With a renewed emphasis from ...
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1answer
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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 ...
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1answer
79 views

How were the geodetic and geocentric latitudes of the Space Shuttle defined and calculated?

The image below is cropped from https://i.stack.imgur.com/4XFaJ.jpg as described in this answer. It shows a geographic state of a space shuttle at a given instant in time. There is only one value for ...
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1answer
71 views

Does the arrow in this SOHO trajectory animation point heliocentric prograde, or towards the Sun?

This answer links to this NASA page. The first video shows the two STEREO spacecraft use two and three passes by the Moon to leave Earth orbit and enter into an orbit around the sun. Below is a GIF ...
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107 views

How many stages will be used to bring NASA astronauts to the Moon's south pole and safely back to Earth?

UPDATE: See Space News' NASA tweaks call for lunar lander concepts which links to: FedBizOpps: Human Landing System - Integrated Lander NASA.gov: NextSTEP H: Human Landing System - Integrated Lander; ...
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1answer
94 views

Does NASA needs ecologists? If yes, whats the salary of an ecologist? [closed]

I'm in grade 12 and I'm about to go to Ecology college after this graduation, and I was wondering if nasa needs ecologists or no, and what is the salary for a ecologist. Questions: Does NASA ever ...
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0answers
29 views

How video projection screen is used in test of Europa Clipper's high gain antenna?

Phys.org's Europa Clipper high-gain antenna undergoes testing says: The full-scale prototype antenna, which at 10 feet (3 meters) tall is the same height as a standard basketball hoop, is in the ...
3
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1answer
136 views

What is Space Policy Directive 3 and how does it relate to the Space Fence?

In response to a question about the recent ASAT test by India producing a new debris field in LEO, Patrick Murphy, Director of Strategy, Planning, & Integration for NASA Space Technology Mission ...
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3answers
6k views

Could the museum Saturn V's be refitted for one more flight?

Even though we will not build new Saturn Vs, there currently exist three Saturn Vs in museums. Could any of these rockets be refitted for flight? If not, what specific component would prevent the ...
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116 views

Are there “Space Jellyfish” in Florida? Would they be possible?

The Wikipedia article Space Jellyfish shows the image below with the caption: A California space jellyfish from 22 December 2017 I think that when other Q&A here have shown similar space ...
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1answer
67 views

How do NASA staff ask the director questions using “Social Q&A”?

In Scott Manly's new video Updates - JPL Visit, Mars 2020, Moon in 5 Year, EVA Changes, Indian ASAT after about 01:30 he shows a screen shot of some kind of ...
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1answer
88 views

How old are the EVA space suits that are currently used on the ISS?

Scott Manly says in his new video Updates - JPL Visit, Mars 2020, Moon in 5 Year, EVA Changes, Indian ASAT after about 03:25 that the EMUs that NASA uses are ...
2
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1answer
154 views

How would this two-stage Mars Ascent Vehicle work? Where do you sit?

This curious answer shows an image of a liquid-fueled Mars Ascent Vehicle with a sign in front that only says Two Stage Mars Ascent Vehicle Question: Is there some NASA program associated with it ...
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108 views

What is holding SLS back from launching?

I'm kind of confused on this point SLS has engines, a tank, side rocket boosters, a capsule, and seemingly all of the pieces. What is the major technical issue right now that is keeping SLS from ...
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1answer
161 views

Is there a crewed moon lander currently in the works

Recently, the US vice president directed NASA to land astronauts on the moon within the next 5 years [source]. While there are big rockets (SLS, Falcon Heavy, etc.), and crew capsules (Orion, Crew ...
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2answers
242 views

Has NASA “gone south”? Why are astronauts needed to explore the Moon's south pole?

Wired: Why America Wants to Send Astronauts to The Moon's South Pole “Before we put boots on the ground at the poles, we urgently need a robotic water ice prospecting mission to the lunar poles,” ...
3
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1answer
230 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 ...
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2answers
3k views

How can Trident be so inexpensive? Will it orbit Triton or just do a (slow) flyby?

The recent NY Times article Neptune’s Moon Triton Is Destination of Proposed NASA Mission says (in part): HOUSTON — Is it time to go back to Neptune? Scientists representing NASA’s Jet ...
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1answer
68 views

Why would different Shuttle orbits have different mission directors?

The Wikipedia page for NASA Flight director Holly Ridings contains a portrait with two other STS-117 mission flight directors. The caption there says: Flight directors for the STS-117 mission in ...
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2answers
139 views

Why would an 8-minute burn result in a 6-month delay?

The Ars Technica article Vice President may tell NASA to accelerate lunar landings ends with: And on Thursday, NASASpaceFlight.com reported that the agency is considering skipping a critical test ...
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1answer
123 views

Do all US vice presidents get cool jackets?

The Ars Technica article Vice President may tell NASA to accelerate lunar landings starts with "We're tired of generating PowerPoint journeys that don't go anywhere." and explains that one or ...
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How to create a new reactant Ammonium Dinitramide NH4[N(NO2)] in NASA CEA?

Ammonium Dinitramide(ADN) is a compound used as a green propellant for spacecraft propulsion applications. ADN-blends like LMP103S and FLP-106 are currently under development. However, performing a ...
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1answer
77 views

Identify this astronaut and shuttle mission

After about 02:00 in the Kinematic video SpaceX Delivers Critical Docking Adapter for NASA to the ISS the astronaut says: You know the Space Shuttle’s been with ...
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Surmountability of the technical risks to launching EM-1 on commercial rockets?

NASA administrator Bridenstine announced that commercial rockets (e.g., Delta Heavy and Falcon Heavy) would be considered as ways to launch EM-1 by July, 2020. Such a move would reportedly require a ...
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Can Delta Heavy launch a fully fueled upper stage with no payload attached?

There is right now talk of a potential dual launch mission to fulfill EM-1, where a Delta Heavy would launch a fully fueled upper stage to LEO, to there bet met with the Orion spacecraft, likely ...
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1answer
2k views

What is under these four white covers on the upper part of the Orion capsule?

The New York Times article A NASA Journey to the Moon May Need to Find Another Rocket or Two shows an image of the Orion capsule in a file photo, along with the NASA director. There are four white ...
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1answer
1k views

What exactly is the purpose of connection links strapped between the rocket and the launch pad

I am curious on what are those multiple connection cables latched between the rocket and launch pad. What exactly is the purpose of it, I am aware that one should be for filling up the fuel. But ...
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Are there any scientific or technical reasons for defunding WFIRST?

This week, the White House announced its proposed budget for fiscal year 2020, which of course includes NASA's budget for the same time period. Notably, for the second year in a row, it proposes ...
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Do space stations have standardized officer designations for crew?

I have some anecdotal information. The ISS has a commander, and I noticed here that it had a Flight Engineer, and in this article (found here) I see that Skylab had a Science Pilot. Do space stations ...