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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21
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2answers
3k views

Why it's news that SOFIA found water when it's already been found?

Back in 2008, India proved water on moon. India's ISRO spacecraft Chandrayaan-1 released the Moon Impact Probe (MIP) that impacted Shackleton Crater, of the lunar south pole, at 20:31 on 14 November ...
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1answer
91 views

Why does the Sagan-Drake pulsar map have a circle (negative/blank) near the center?

(click to enlarge, source: WikiMedia) If you look carefully near the center, each of the pulsar line segments have a gap at a specific radius. I can't find any mention of the meaning of this. Any ...
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2answers
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How do US citizens vote in space?

Astronaut Kate Rubins tweeted that she has voted while being on the ISS: How does that work? Did she have some paperwork with her that she can send down to earth with a spacecraft soon? The ...
5
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1answer
65 views

NASA SIM (Space Interferometry Mission) - how mature technically it was at the moment of cancellation?

NASA's SIM mission was canceled in 2010. It was planned as first optical interferometer in space. I couldn't find answer - how technically mature the mission was when it was canceled? How far it was ...
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1answer
134 views

Is the acoustic horn at Stennis Space Center still there? Is it used?

Stennis Space Center had a giant horn installed in the times when they were testing the Saturn program engines. The purpose was to see what the acoustic conditions were like before testing and thus ...
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2answers
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What is a “fee area” exactly and why is it named that way?

On the map of Stennis Space Center, from the early 1960s when it was still named "Mississippi Test Facility"/"Mississippi Test Operations", part of the area is labeled "Fee ...
3
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5answers
241 views

Demonstrative examples of NASA “programs that go too long, that cost too much… end up getting cast out later”?

Spaceflight Now's NASA lays out $28 billion plan to return astronauts to the moon in 2024 quotes NASA Administrator Jim Bridenstine, and includes the following: Bridenstine acknowledged the challenge ...
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1answer
93 views

Why aren't there any trajectories for the Viking missions in JPL Horizons' database?

Horizons has calculated trajectories for deep space spacecraft, including six objects related to Apollo 8 through 12. See an (old) list in the currently unanswered question What was Chang'e-2'...
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1answer
84 views

Is there any live classes for learning about Mars and Universe by professionals?

I have 10 year old son and he is crazy about Mars, Space, Blackholes, Universe , Rockets, and Satellites. Right now he goes to youtube and tries to learn. But we don't know which video is good and ...
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Has Same Beam Interference (SBI) been used or at least tested at Mars? Are there plans to use it in the next few years?

Section 5.4 of Descanso I, Radiometric Tracking Techniques for Deep-Space Navigation by Catherine L. Thornton and James S. Border titled Future directions in Radiometric Tracking; Same Beam ...
11
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1answer
726 views

Can you help me identify this vehicle outside the VAB?

I found this photo of a house being transported off of Kennedy Space Center property sometime in the 1960s/early 1970s. We managed to track down where the house was moved from/to, but one thing that ...
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1answer
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Do space suit designers exist?

I was just having a closer look at the new space-suits by SpaceX, that were worn by NASA astronauts Bob Behnken and Doug Hurley (image below this question). The design made me wonder about who may ...
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What novel technologies did DARE ditch in order to get NASA support?

Business Insider's NASA patented a faster, cheaper route to the moon. The first spacecraft to use it could make Nobel Prize-winning discoveries about the universe. includes a section titled 2 Nobel ...
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When will STP-3 launch with the new optical space coms test and why is it late?

Wikipedia's Space Test Program; Upcoming activities; STP-3 says: The STP-3 mission is scheduled to be launched on a ULA Atlas V 551 rocket in 2020.[23][24][needs update] It includes the STPSat-6 ...
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1answer
79 views

MMRTG- thermal and electrical output

I haven’t been able to find a definitive number for the thermal output (in watts) of the MMRTG used aboard the Perseverance rover. The numbers I’ve seen range from 1950 watts to over 2000. I also ...
4
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1answer
167 views

Does NASA's Deep Space Network sometimes listen to other space agencies' spacecraft “just for the heck of it” or other non-mission related reasons?

This answer mentions: It's well known that other countries routinely spy on each other (i.e. the NSA tapping of Angela Merkel's phone). NASA's Deep Space Network's space-related activities (like ...
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168 views

Has NASA ever included a ground controller or astronaut becoming insane/irrational/belligerent in a training simulation?

NASA training simulations have included a wide variety of problems thrown at the pilots and ground controllers -- not only the typical technical failures, but also some unusual outside-world stuff ...
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0answers
63 views

Why was the SpaceX Demo 2 spashdown livestream so devoid of visuals?

Today's successful splashdown was tremendously boring compared to what we are used to from SpaceX launches. The mission statistics, the timeline, inner cockpit, etc was not shown during the telecast. ...
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1answer
71 views

What's the purpose of space exploration to humans? [closed]

I don't understand why NASA, European Space Agency, ISRO etc. spend enormous amount of money/time on space exploration. Why can't they spend it on the medical side and invent vaccines to incurable ...
2
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2answers
168 views

Is Perseverance still in Safe Mode?

Messages in The Pod Bay and Space.com's NASA: Mars rover Perseverance in 'safe mode' after launch, but should recover both said that Perseverance was in "Safe Mode". Is it still?
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1answer
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Could supplies have been launched to Columbia?

I've seen the discussions of whether NASA could imaginably have saved the crew of Columbia if they'd known about the damage to the wing in time. A lot comes down to the maximum time the crew could ...
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1answer
89 views

Will surface samples from Mars orbit it in a spherical capsule until captured?

The abstract of the interesting 2001 NASA JPL paper Covering a Sphere with Retroreflectors says: Abstract- One of the future missions for Mars involves returning a soil sample from the Martian ...
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7answers
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Would it have been cheaper and/or faster to put a James Webb-like Space Telescope on a balloon instead of a rocket?

I've just noticed the following items: CNET: NASA to send stadium-size balloon skyward to study the cosmos JPL/NASA News: NASA Mission Will Study the Cosmos With a Stratospheric Balloon Even in 2020 ...
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1answer
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What is the equivalent of Curiosity's “MSL” in the context of Perseverance? What's the official name of the mission? Are the distinctions similar?

Answers to Where does MSL end and Curiosity begin? explain the difference. There was much fanfare for the naming contest for the Perseverance rover, but I don't know what the mission is called. ...
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1answer
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What was the nature of the communication problems during Apollo 11's Eagle's descent? How were other antennas selected?

In the video of Los Angeles station KTLA's Frank Buckley interviewing astronaut & Apollo 11 CAPCOM Charlie Duke a communication problem and antenna selection is described: BUCKLEY: Many of us who ...
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1answer
436 views

How many US states receive large amounts of money due to SLS?

That NASA is spread out over so many locations across the US is history and discussed elsewhere in this site. Briefly, Congress approves funding and the funding ends up in many, many of congress' ...
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2answers
566 views

Was solar newbie Solar Orbiter able to get “closer” to the Sun than Parker Solar Probe so quickly?

The NASA News headline ESA/NASA's Solar Orbiter Returns First Data, Snaps Closest Pictures of the Sun caught my eye because Solar Orbiter (2020-010A) was launched just five months ago whereas Parker ...
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3answers
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Why is the supply of RTG's running short?

I always hear that NASA has only a limited amount of radioisotope thermoelectric generators (RTGs) remaining. I did some superficial research on how they work and what is needed to produce them and ...
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Was the ISS closer to Baja California or California when this ISS press event started? When exactly did it start?

The NASA video Expedition 63 Inflight with New York Times, Fox News, and USA Today - July 7, 2020 begins with NASA astronaut and Expedition 63 commander Christopher Cassidy discussing with an ...
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1answer
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Were the “frogmen” who performed ocean recovery Navy SEALs?

The ocean landings of Mercury, Gemini, and Apollo were assisted by "frogmen" rescue divers. They were dropped from helicopters to assist with the recovery of the crew and capsule. The U.S. ...
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1answer
161 views

Why is the highest speed that Voyager 2 achieved from the Jupiter gravity assist not at perijove?

I plotted some data of the speed of Voyager 2 for various times (around the Jupiter flyby) and noticed that the highest speed that Voyager achieved was not at perijove and was wondering why this might ...
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1answer
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Which shuttle mission is this video from?

At 12 minutes and 19 seconds into the NASA video Space Shuttle Documentary (Narrated by William Shatner), there’s a really neat video of a space shuttle lighting up the clouds from underneath and then ...
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0answers
71 views

What did NASA Vehicle Assembly Building's “weather” look like? Did it really have clouds? Did it rain?

Comments below this answer to Would there be snow, rain, fog or clouds in a deep, sealed, subsurface cavern on the Moon if water were present? point out that the NASA Vehicle Assembly Building ...
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1answer
90 views

Plans for HUD in next-generation spacesuits

A HUD (Head Up Display) allows a computer to display information directly into a user's line of sight and thus allows them to interface with that computer without needing to look at a tablet or ...
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4answers
208 views

Computers for Apollo Mission

Why did NASA invest so much amount of time and money on developing computers for Apollo Missions? Wouldn't the Man on Moon mission have been far easier and faster if the Astronauts drove the ...
2
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1answer
91 views

What routinely happened in the TIROS control center? Was anything controlled there?

Question: What actually happened in the TIROS control center at Goddard Space Flight Center, Greenbelt, Maryland? Did they receive and print out satellite images in this room? If so, how? Did they ...
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1answer
79 views

What radio signals have NASA transmitted to outside our solar system?

What radio signal have NASA transmitted to outside our solar system and what did they contain?
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1answer
144 views

What kind of rocket will ESA(?) launch from Mars? Who will build it?

The NASA-credited images below are from the BBC News article Europe pushes ahead with 'dune buggy' Mars rover which explains that it will drive around quickly on it's big 70 cm wheels (see article for ...
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1answer
4k views

Who zoomed the video camera in and out when David Scott dropped the feather and hammer on the Moon?

This answer to Have optical zoom systems been used in space exploration? explains that there were video cameras on the Moon that could zoom. In the video below someone (or something) is zooming the ...
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0answers
51 views

Is there a list of private companies with products on NASA Mars landers?

I'm trying to create a list of all private companies which have their products on the Mars surface. To make it easier, I'm limiting my search to NASA landers. Is there a comprehensive list of NASA ...
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2answers
131 views

Are Mars rovers in continuous contact with Earth when in line of sight?

The NASA Perseverance rover Communications page describes the Ultra-High Frequency Antenna, the X-band High-Gain Antenna, and the X-band Low-Gain Antenna but does not mention how often it will be in ...
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1answer
116 views

How does the Commercial Crew Program differ from the way NASA's previous crewed systems were developed and operated?

This overview of the Commercial Crew Program on NASA's site describes the difference between Commercial Crew and previous systems (I have numbered the original bullet points for easier reference): ...
2
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1answer
154 views

Is SLS capable of launching the core stage into LEO?

After watching the Hazegrayart video If Rockets were Transparent I realized that I didn't really have a clear idea what the Space Launch System (SLS) is capable of doing. Question: Is SLS capable of ...
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Would the Saturday May 30th 2020 SpaceX launch visible from Boca Raton? [duplicate]

Will I be able to see the SpaceX Crew Demo-2 launch this Saturday May 30th if I’m at the beach in Boca Raton, Florida and the launch takes place?
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How often do other space vehicles visit the international space station?

I was surprised to read NASA's statement that This (27 May 2020) mission marks the first time since the retirement of the space shuttle in 2011 that humans will fly to the space station from U.S. ...
11
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1answer
421 views

What is the “mistake” that caused Doug Loverro to resign as NASA's Human SpaceflightChief so shortly before DM-2?

Today, on May 19, 2020, Doug Loverro announced his resignation. It's a bizarre time to do so, so shortly before the Commerical Crew Program puts astronauts into space for the first time, but even ...
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2answers
141 views

How far apart are ISS launch windows?

Being on an eccentric orbit, I imagine the launch windows are instantaneous (which they are) and different for each launch site whether it be Baikonur, Cape, Tanegashima, or the ESA launch site. How ...
6
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1answer
145 views

Why does the ISS occasionally operate with just 3 crew members?

There have many instances where the ISS only has 3 crew members, often for many weeks. This places significant strain on workload and productivity. Why isn't a new crew launched quicker?
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Did NASA develop any crewed moon landing programs between Apollo and Constellation?

I just assumed that NASA has always been developing some plan to get humans back on the moon since Apollo was cancelled. But while attempting to verify this, I found that this doesn't seem to be the ...
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0answers
104 views

Heart attacks & suicides in NASA Mission Control of the 60s?

On page 280 of Mike Gray's book Angle of Attack: Harrison Storms and the Race to the Moon (1992), Gene Kranz, legendary NASA flight director in Gemini & Apollo missions, is quoted as saying: It ...

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