Skip to main content
65 votes

Is pinging the Moon with a laser as shown on "The Big Bang Theory" possible?

There is a very nice Myth Busters video about bouncing a laser off the Moon linked below. To answer your question, current work is done with an array of corner cube reflectors on the Moon roughly 50 ...
uhoh's user avatar
  • 149k
43 votes
Accepted

Saturn V's external blueprints

Had a bit of a gander at what NASA Technical Report Server and Semantic Scholar had to offer and found a couple things that I reckon might be helpful. NASA created a 1/10 scale model of the Saturn V ...
Barry Jenakuns's user avatar
36 votes

Is pinging the Moon with a laser as shown on "The Big Bang Theory" possible?

The University of Texas's McDonald Observatory performs laser measurements of the distance to the Moon using retroreflectors left by the Apollo astronauts. You can read all about it in the McDonald ...
Organic Marble's user avatar
29 votes
Accepted

Where can I download the Soyuz Crew Operations Manual?

I can't recall where I got them from, so let me just re-host. Crew-ops manual Users manual
SF.'s user avatar
  • 55k
28 votes

Saturn V's external blueprints

There's a more detailed profile drawing available for download at the bottom of this Heroic Relics page. Here's a representative slice: It used to be possible to get an inexpensive print of a cleaned-...
Russell Borogove's user avatar
23 votes

Does anyone recognise this differential equation (from Gravity's Rainbow)?

Schachterle, Lance, and P. K. Aravind. "The three equations in Gravity's Rainbow." Pynchon Notes 46-49 (2000): 157-170. Journal Link. "In our view, Pynchon inscribes these equations into ...
Joseph O'Rourke's user avatar
20 votes
Accepted

From which NASA publication originates/where can I find a higher resolution version of this SSME flow diagram?

It's on pdf pages 139-141 here: https://gandalfddi.z19.web.core.windows.net/Shuttle/SSME_MPS_Info/KSC-SSME_System_Eng_Handbook.pdf but you'll have to "glue" it together into one drawing. ...
Organic Marble's user avatar
16 votes
Accepted

Delta V required to land and then ascend from the surface of every celestial body

Most search results I get for "solar system delta-v map" includes this information. I quite like this one: To read out the ascent cost from these maps, you take the single number between ...
SE - stop firing the good guys's user avatar
13 votes

Does anyone recognise this differential equation (from Gravity's Rainbow)?

Engelhardt, N. & Engelhardt, H., (2018) “The Momentum of Pynchon's Secret Formula: Gravity’s Rainbow’s Second Equation between Archival Sources and Fiction”, Orbit: A Journal of American ...
SomethingCool's user avatar
13 votes

Accurate map of Ceres

NASA has produced a topographical features map of Ceres, with names for some craters. The map was produced in 2015. This one has few more details,
Fred's user avatar
  • 13.1k
12 votes
Accepted

Resources for Rocket Propulsion

A good starting point would be this very site's rather comprehensive reference section, which contains many propulsion references: Resources and references on the topic of space exploration If you are ...
Organic Marble's user avatar
9 votes

Earth to Mars (or reverse) Hohmann transfer orbits for the 21st Century

Graphics showing non-optimal but "close enough" launch opportunities, and their relative cost, are called porkchop plots. The following example is from On the Nature of Earth-Mars Porkchop ...
SE - stop firing the good guys's user avatar
9 votes
Accepted

How do I get the Landsat satellite's images of the Earth?

Head over to the USGS website, and find yourself their nifty Earth Explorer webapp. Figure out where & when you want to snag the imagery of (the tools they provide allow you to draw/designate an ...
Anton Hengst's user avatar
  • 10.7k
9 votes
Accepted

Ariane 6 upper stage schematic showing integration of APU

I found a doctoral dissertation that discusses the possibility of increasing the thrust of the two nozzles (TAPUs) of the APU on Ariane 6's upper stage. The drawings in the dissertation when combined ...
ymb1's user avatar
  • 2,423
8 votes
Accepted

Returning from Space: Re-entry - from which book is this chapter taken?

Simply traveling the URL "upwards" you get this: https://www.faa.gov/about/office_org/headquarters_offices/avs/offices/aam/cami/library/online_libraries/aerospace_medicine/tutorial/ It's an "online ...
DarkDust's user avatar
  • 12.5k
8 votes
Accepted

Accurate map of Ceres

The USGS Astrogeology Science Center's Astropedia is an excellent source for derived mapping data products (though only 7 Ceres products). Here is a "Ceres Nomenclature" data product:
BrendanLuke15's user avatar
8 votes

Are there any sources with high-confidence state vectors for GRAIL-A?

Partial answer too long for several comments: tl;dr: The drift you are seeing is just as likely (if not more) to be a difference in your acceleration models as it is an "inaccuracy" (...
uhoh's user avatar
  • 149k
7 votes
Accepted

Research paper on 'Wait calculation' for interstellar travel

@AnthonyX has found a paper that fits your description, published in JBIS. The paper's citation is: Kennedy, Andrew. (2006). Interstellar Travel - The Wait Calculation and the Incentive Trap of ...
uhoh's user avatar
  • 149k
7 votes
Accepted

Is this really the logo of the North Korean space program?

Among others, the Wikipedia page cites this CNET article, which in turn links to a copy of the original KCNA statement; this is also linked from the WP page. It's now offline, but here is an archived ...
Andrew is gone's user avatar
7 votes

Did the Apollo program deliberately hire younger and less-experienced engineers and staff?

This question rests on two premises that are both questionable. First, that the early space program's engineers and functionaries were mostly young, and second that this was due to a deliberate ...
Darth Pseudonym's user avatar
6 votes
Accepted

Technical historical books covering the Apollo-Saturn program

Chariots for Apollo NASA SP-4205 (1979) By Courtney G. Brooks, James M. Grimwood and Loyd S. Swenson, Jr. (web version) (pdf version) Moonport NASA SP-4204 (1978) By Charles D. Benson and William ...
Organic Marble's user avatar
6 votes

How to get started with CubeSats

Personal Suggestion - It's always best to learn by getting your hands dirty and since you are a student, do make an effort to start a Student Satellite Project in your college if it does not already ...
OrangeDurito's user avatar
6 votes
Accepted

Nickname and citation for famous, historic three-body spacecraft trajectory design "manual"; something like "DoKaRoMo"?

You are likely looking for "KoLoMaRo". http://www.cds.caltech.edu/~koon/book/KoLoMaRo_DMissionBk.pdf Wang Sang Koon, Martin W. Lo, Jerrold E. Marsden and Shane D. Ross "Dynamical ...
SE - stop firing the good guys's user avatar
6 votes

NASA design handbooks and specifications

A search on NASA NTRS for "design standards" turns up a lot...
Organic Marble's user avatar
6 votes
Accepted

Is there an archive of the Satellite Times magazine from the mid-late 90s?

Is there an archive somewhere online? Maybe PDFs? I have tried browsing the web but with no luck. https://worldradiohistory.com/Satellite-Times.htm
Paul Robbins's user avatar
6 votes
Accepted

Is this a plot of Isp vs propellant mass fraction for a SSTO vehicle?

More precisely, this is a plot of the mass fraction required to achieve some target delta-v. As David Hammen points out, the curve seems to be a closer match to ~7.6 km/s, which would would be in the ...
Christopher James Huff's user avatar
6 votes
Accepted

Depth to diameter ratio of impact craters

As one might expect, detailing the key geometric features of craters, including the slope angle of the walls, involves more than a few additional dimensional measurements. In real craters the walls ...
Oscar Lanzi's user avatar
  • 8,525
5 votes
Accepted

How do I determine what materials will burn up during reentry?

NASA provides open source software for just this purpose. It's called DAS (Debris Assessment Software) and you can find it here: http://orbitaldebris.jsc.nasa.gov/mitigate/das.html There are a lot of ...
aerocooper's user avatar
5 votes

Pre-flight concepts of space travel

NASA provides a good Brief History of Rockets which summarizes in concise form many of the historical advances in rocketry and space exploration, including Wan-Hu's unfortunate attempt at a rocket-...
Jerard Puckett's user avatar
5 votes
Accepted

A retracted paper about Chlorophyll on Mars?

Google searching for "carol stoker chlorophyll" found this Slashdot comment from April 2002 commenting on the controversy, particularly around a BBC article that described the situation in ...
kgutwin's user avatar
  • 1,566

Only top scored, non community-wiki answers of a minimum length are eligible