Top products from r/spacex

We found 47 product mentions on r/spacex. We ranked the 116 resulting products by number of redditors who mentioned them. Here are the top 20.

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Top comments that mention products on r/spacex:

u/jardeon · 50 pointsr/spacex

Two years ago, I applied for and was selected to attend the SpaceX CRS-3 NASA Social event, due to my activity on social networks. At the time, I didn't use Facebook, Instagram or Twitter, so my selection was largely due to the fact that my social network of choice was Reddit.

Over the course of three launch delays, I met a number of amazing people, including fellow redditor /u/mseeley1 (the guy capturing all those great shots of the Falcon 9 returning to Port Canaveral) as well as Bill Jelen, the brains behind the Mr. Excel empire. At separate times, we each found ourselves recruited by SpaceFlight Insider to act as photographers, videographers and writers following our time at the SpaceX CRS-3 launch, which enabled us to continue coming out to cover launches & other special events at Cape Canaveral and Kennedy Space Center. But we were finding that our pictures would get just a burst of attention right around a launch, then the news cycle would take over and people would lose interest. So we put our heads together on how we could share more of the photos we were capturing.

It turns out that Mr. Excel is a book publisher, and loved the idea of doing a full-color launch photo book, and from that, We Report Space was born. Our involvement with the media pool at KSC and CCAFS meant that we were on hand to witness & photograph the launch failure of CRS-7, as well as the triumphant return to flight (and return to launch site landing) of SpaceX during Orbcomm OG2-M2. We've shared a number of those pictures here, through /r/spacex, and now they've all been collected into a full color book documenting Florida rocket launches from April 2014-December 2015.

What really makes this book awesome, though, is that it's not just pictures of rockets lifting off. We've also collected essays from other NASA Social participants on their experiences, both in attending the event, as well as the impact it has had on their lives afterwards. If you've followed my account here for any length of time, you know I'm a pretty serious cheerleader for the NASA Social program, because it really is the best answer to "how can I get as close as possible to a rocket launch?"

The book is available through our website, and we're offering some specials right now that bundle the book with 8x10 prints of rocket launches (including three very nice SpaceX Falcon 9 photos) and free shipping in the US. If you buy direct from our website, we'll fulfill your order right away. If you're outside the US, you can order the book through or Barnes & Noble, and it'll ship June 1st.

Of course, We Report Space will continue to cover launches out of Cape Canaveral and Kennedy Space Center, and we'll continue to share those pictures here as we take them. The support of the /r/spacex community & moderation team has been invaluable in helping us to get the word out that human spaceflight didn't end with the Space Shuttle program.

You can also follow us on Instagram and Facebook to stay up to date with all the launches & other spaceflight-related events we're covering.

u/TheHoverslam · 6 pointsr/spacex

Elon Musk's [biography] ( if you don't own the book look [here] (

"I mean, if you do a densified liquid methalox rocket with on-orbit refueling, so like you load the spacecraft into orbit and then you send a whole bunch of refueling missions to fill up the tanks and you have the Mars colonial fleet - essentially - that gets built up during the time between Earth-Mars synchronizations, which occur every 26 months, then the fleet all departs at the optimal transfer point."

“And then one of the key questions is can you get to the surface of Mars and back to Earth on a single stage. The answer is yes, if you reduce the return payload to approximately one-quarter of the outbound payload, which I thought made sense because you are going to want to transport a lot more to Mars than you’d want to transfer from Mars to Earth. For the spacecraft, the heat shield, the life support system, and the legs will have to be very, very light."

I think MCT is going to be really really big and feature a lot of Raptor engines so that it can cut the travel times to Mars. It is probably going to have the highest propellant to mass ratio ever. Every drop of performance is required, but SpaceX isn't a fan of having multiple fuels, Merhane/Lox is going to be the only fuel type to reduce complexity and cost (Methane is the cheapest hydrocarbon.)

Earlier posts by me:

"The performance gain for a fuel tank using densified propellants vs a non densified one isn't so great but it certainly gives a small boost to the rocket. You aren't doing a densified rocket because you want more thrust from the engine, you want slightly more fuel to fit in the tanks so that it has increased performance. As I (amateur rocket scientist) understand it, the reason why Merlin 1D+ has more thust is because the LOX and RP-1 molecules have a higher density so that the mass flow increases. By consuming slightly more mass with the same volume as well as driving the turbopump harder the engine has more thust with no physical changes. By using Methane the same applies, only that here the slightly higher performance of using densified propellants is essential to be able to transfer really heavy cargo to Mars in a fully reusable configuration. Here every single drop of performance is needed and example the heatshield, and landing legs need to be very light."

"Yes, currently boil off is a great deal but long term storage of cryogenic liquids are possible as long as the fuel tanks have good insulation properties which would also increase mass. Supercooled Liquid Oxygen would boil of at a higher rate than a supercooled liquid Methane tank. A Methane rocket can have a common bulkhead and requires no pressuration system which would decrease the mass of the vehicle. This 'lost' mass can be used elsewhere, example to insulate the tanks or make a cooling cycle."


If the MCT has an efficient fuel cooling cycle the vehicle doesn't need to be fueled with densified propellants because it will cool them down by itself when the time comes to depart or the final refueling ship arrives. When coasting between Mars and Earth the tanks will be mostly empty and the contents will float inside the tank only needing a little insulation in the tanks and a cooling system that maintains the temperature. When it arrives at Mars the fuel is cooled down and the MCT lands propulsively.

It's very important that the rocket engines uses densified propellants to not encounter combustion problems! Otherwise it would be like trying to run a petrol car with diesel. The Raptors are made to combust densified methane and lox, not wormer methalox

u/yoweigh · 1 pointr/spacex

We're delighted to announce that r/SpaceX will be hosting an AMA with Dr. Robert Zubrin! The event will take place in its own dedicated thread this Saturday, November 23rd at 12:00 Pacific Time, which is 20:00UTC. As you may already know, Dr. Z's book The Case for Mars was a significant early influence on SpaceX's Mars colonization plans. His recent IAC2019 Mars Direct 2.0 presentation generated some good discussion here.

This is happening for real! We've been in contact with representatives of the Mars Society and Dr. Zubrin himself. We are very thankful to everyone involved for giving us their time and attention.

We'll collect the top few questions from this thread and repost them in the dedicated AMA thread on Saturday. Everyone will of course be welcome to ask their own questions in the AMA thread as well. Dr. Z will probably stick around answering questions for a few days.

Just to reiterate, this is NOT the actual AMA thread! That will be created a few hours before the AMA begins on Saturday.

u/muhji · 2 pointsr/spacex

Hey! I apologize for the late response, but there are two books that come to mind instantly.

One is
This one does an awesome job of depicting mission objectives, science results, orbits, etc. It also has some of the highest quality color photographs that I've ever seen in a book of this sort. This is probably what I'd recommend to start with.

Additionally, there's the Robotic Exploration of the Solar System series, of which Part I can be found at

I'd say this series is quite a bit more engineering-focused as opposed to the first one I mentioned, but this carries the benefit of talking about every single minute detail, down to what kind of radiation hardening was used on the electronics.

Hope you find them useful!

u/Ambiwlans · 1 pointr/spacex

This AMA is now over.

The mod team would like to thank Dr. Zubrin for his insights and inspiring words. And thank the Mars Society team for making this exchange possible along with everyone who participated asking well thought out stimulating questions.

To those showing up too late to ask questions, hopefully you'll find some of the many questions Dr. Zubrin has answered (for over 3 hours!) to be relevant. If not, there is a good chance he has already answered your question in The Case for Mars or The Case for Space. So if you haven't read them yet, check them out.

If you're interested in the Mars Society, be sure to check them out on Youtube, here on reddit or their site. Special shoutout to /u/EdwardHeisler and /u/Marsonaut for acting as our Reddit - Mars Society liaisons (even if it cost them event tickets!).

u/robertmassaioli · 8 pointsr/spacex

If this is a troll then it is excellent; I'm falling for it hook line and sinker.

However, if you are open to reading about why the reaction has been so negative (with all the downvotes) and want to read something cool instead Zubrin has a book called ["The Case for Mars"][1].

The book is not perfect (there are a few sections that could do with more recent information or more research input) but largely it's a good book that makes the wider points clear.

Or just read the much more approachable blog by Wait but why. Many people on this subreddit are here from that one post.

I promise this is usually a fun sub and people don't often get downvoted so harshly. :)


u/njew · 2 pointsr/spacex

The list provided by david is good, and I'm just going to point out two that are really good for understanding rockets and spaceflight:

One is Rocket Propulsion Elements, which I hear is great if you actually want to build your own engine. The other is Fundamentals of Astrodynamics, which helps to explain orbital mechanics, controls, and some other important facets of spaceflight like how we track a satellite from the ground.

u/Captain_Hadock · 22 pointsr/spacex

> It has always been about flags and footprints

He literally went against all of NASA by saying 30 days missions were a huge waste of resources and that the only way to properly do Mars Missions was to do opposition class mission, with a year and half stay... That's all in the book.

What's also in the book is that after 5 or 6 cycles (MAV lands at window n, crew lands at window n+1, leaves at window n+2), the covered surface by the frequently spaced landing sites (and by the methane powered rovers) would be sufficient to decide on the best landing site to start a more permanent base.

It's called The Case for Mars (which incidentally will totally be the name of my suitcase if I ever get a seat on one of these MCT), and while it smells like the 90s (built on STS assets, expandable rockets), it definitely is geared toward creating a permanent civilization on Mars. Watch this and tell me again that he is an Apollo kind of guy.

u/marysville · 4 pointsr/spacex

How To Build Your Own Spaceship is a fantastic introduction to rocket appliances and commercial space flight. It's pretty short, too. I highly recommend.

And obviously The Case for Mars.

u/SuperSMT · 1 pointr/spacex

If you want to learn more about Elon Musk, this book is a very good biography.

Alternatively, this (free) blog series by Tim Urban is a great in-depth look at him and his companies, part 3 is all about SpaceX

u/saxiragerusselll · 14 pointsr/spacex

You can get the epub of the recent reprint for free here

Or buy it on Amazon

Fantastic book.

u/Goldberg31415 · 1 pointr/spacex

Rocket Propulsion Elements by Sutton & Biblarz is propably the best introduction to rocket engines there is

u/clay1039 · 3 pointsr/spacex

Have never been to a launch, so no personal experience, but ear plugs for the kids seems very smart. Here is what I give my two little's if we're somewhere the music is really blasting; don't know if a rocket launch would call for something more heavy duty?

u/Colblic · 40 pointsr/spacex

This notion of "Elon Time" is actually discussed in his biography. To determine the amount of time something will take, Musk asks himself, "how long will it take me to code a line? How many lines will there be?" Then, multiply to get an estimate. These are the values we see in his tweets. His secretary then goes back to customers and gives them a more 'realistic' timeline.

But you have to look at what they have now and extrapolate. The ITS will not come by magic. If developing the FH is this difficult, why should the ITS/BFR or the V2 be any better right away? SpaceX will get there, it will take a lot of time, but we need to be patient.

u/in0pinatus · 53 pointsr/spacex

This is the phenomenon of Nominative Determinism, of which examples abound, perhaps the most notorious being a study of incontinence published by A. J. Splatt and D. Weedon. You may also be entertained to note a book on the Arctic and Antarctic by Mr Snowman, or the head of dairy company Danone UK, Bruno Fromage, or (my favourite) Belgian footballer Mark De Man.

And personally I am of course, like many of us, most looking forward to Elon Musk confirming that this phenomenon is real and not merely a serious of amusing coincidences with the launch of his own line of fragrances

u/Cakeofdestiny · 5 pointsr/spacex

Huh? Paperback and Hardcover editions exist on amazon, for $25 and $99 respectively.

u/Toinneman · 29 pointsr/spacex

In the iconic book Ignition! every test fire where the test stand doesn't blow up, is considered a success ;-)

u/flshr19 · 1 pointr/spacex

With this new BFS design, Elon is definitely channeling his inner Tom Swift.

u/mcarlini · 1 pointr/spacex

I bet these hotwheel teslas will be flying off the shelves for the kids!

Edit: yep, nearly sold out!

u/snesin · 3 pointsr/spacex

In Rubert Zurbin's excellent 1996 book The Case For Mars, he describes the Mars Direct plan which places a small nuclear reactor (does not say what type) capable of 100 kilowatts and lowers it into a crater or natural depression. This powers the chemical plant to produce fuel for the trip back.

To my mind, this seems to be the easiest solution; many small reactors. Portable with a rover, you can set up perimeter/remote bases that are not limited by umbilical cord length. If one has a problem, you still have capacity in the others.

I would also expect a few small RTGs laying about as well. Though an RTG is fairly inefficient for producing electricity, they are simple, dependable, and long-lived. The radioactivity is obviously a concern, but not insurmountable. Also, Mars is cold and a lot of energy will be needed for heat, and the RTG's waste heat can tapped directly without inefficient conversions.

u/TaylorR137 · 8 pointsr/spacex

I saw the launch in person and couldn't believe it when I saw the stage separate, flip, and retrofire through binoculars. I'd assumed it'd be much further downrange!

We really are living in an age of science fiction turned reality.

u/taitcha · 1 pointr/spacex

Leaving aside the Mars part, it's similar to Oryx and Crake by Maragret Atwood:

u/Straumli_Blight · 6 pointsr/spacex

Switching to 1TB microSDXC cards (5 g mass), you could ship 20 EB of data and bandwidth would be 1.286 TB/s for a 180 day trip.

The storage would probably cost around $4 billion (or 2 SLS launches).

u/trimeta · 8 pointsr/spacex

If LOX is your measuring-stick for "hard to work with," you need to read Ignition!.

u/TxDuctTape · 3 pointsr/spacex

War Dogs by Greg Bear. Ground war on Mars and the Colonists are called Muskies.