SpaceX
14.7K subscribers
1.82K photos
828 videos
18 files
8.45K links
(Unofficial)
News and updates about the amazing space company that's leading humanity to the stars

For more detailed updates and discussions join our chat:
@SpaceXChat
@SpaceXFeed

⛔️ No SpaceX crypto exists.
Download Telegram
Interesting segment on Boca Chica from CBS This Morning with some great drone shots of Starship
https://ift.tt/2LATHln

Submitted September 18, 2019 at 03:11PM by USCDiver5152
via reddit https://ift.tt/32Z3bx1
Forwarded from EverythingScience
THE GLOBAL CLIMATE STRIKE IS HAPPENING NOW

This week will be historic. In over 150 countries, people are stepping up to support young climate strikers and demand an end to the age of fossil fuels. The climate crisis won’t wait, so neither will we.

Young people have woken up much of the world with their powerful Fridays For Future school strikes for the climate. Now, millions of adults are joining in a huge wave of that will kickstart renewed action all over the world. The urgency of the climate crisis requires a new approach and a just response centered on human rights, equity, and justice. Follow the actions and join the movement.


Join the movement

Share now. Spread awareness now. The climate crisis won't wait.

#ClimateStrike
@EverythingScience
Elon Musk on Twitter: Sure. Have to do it on Mars from beginning. Will ultimately do that on Earth too, so rocket flights will be zero net carbon long-term.
https://twitter.com/elonmusk/status/1175260773687472129

Submitted September 21, 2019 at 04:28PM by Caemyr
via reddit https://ift.tt/30yRb3n
Starship is getting hers wings!
https://ift.tt/2M4QWYR

Submitted September 21, 2019 at 03:02PM by _b0rek_
via reddit https://ift.tt/350uYig
Air Force certified Falcon Heavy for national security launch but more work needed to meet required orbits
https://ift.tt/2Nsvhg5

Submitted September 22, 2019 at 06:25PM by Wetmelon
via reddit https://ift.tt/2NuuOtY
Elon Musk on Twitter: "Adding the rear moving fins to Starship Mk1 in Boca Chica, Texas
https://mobile.twitter.com/elonmusk/status/1175812366019244032

Submitted September 22, 2019 at 06:42PM by spiderroom
via reddit https://ift.tt/32Uzmxp
Air Force confident NDAA will back its launch procurement strategy
https://ift.tt/2IdvsYJ

Submitted September 22, 2019 at 06:38PM by Wetmelon
via reddit https://ift.tt/2LFQeSI
Elon on Twitter: Bottom half of Starship at night. Top half with forward fins & header tanks probably stacks on Wednesday. Three Raptors already installed.
https://twitter.com/elonmusk/status/1176009047729954818?s=21

Submitted September 23, 2019 at 07:45AM by failion_V2
via reddit https://ift.tt/30MPfER
Eastbound F9 core spotted, and it survived a tornado!
https://ift.tt/2mprELJ

Submitted September 24, 2019 at 05:36PM by codercotton
via reddit https://ift.tt/2kT51is
A discussion with a scientific expert on Arcadia Planitia about what the area is like and why SpaceX might want to land there (WeMartians Podcast)
https://ift.tt/2lmSV17

Submitted September 24, 2019 at 03:16PM by wemartians
via reddit https://ift.tt/2moHqqe
Everyday Astronaut explaining how flaps control flight (twitter video), followed by informative Elon tweets
Everyday Astronaut explaining how flaps control flight (twitter video)
Elon: That’s correct. Essentially controlled falling, like a skydiver.Viv: ... but what's used to actuate the fins? Some kind of small motor?
Elon: Many powerful electric motors & batteries. Force required is enormous, as entire fin moves. More about this on the 28th.Elon: It does actually generate lift in hypersonic regime, which is important to limit peak heating
EA: Pop back out of the dense atmosphere to radiate heat away and then drop back in 🤔 awesome! ...
Elon: Better just to ride your max temp all the way down & let T^4 be your friend. Lower atmosphere cools you down real fast, so not crazy hot after landing.Oran Maliphant : Is “sweating” methane still an option?
Elon: Could do it, but we developed low cost reusable tiles that are much lighter than transpiration cooling & quite robust
\ok, I was steadfast that Elon's statements said nothing about future use of transpirational cooling, I will concede that this is not a defensible position anymore, ha ha])Scott Manley: And just like that I need to rebuild some of my descent models. So the AoA won't be 90 degrees, it'll provide lift to keep vehicle out of denser atmosphere until it loses enough speed.
Elon: Exactly. For reusable heatshield, minimize peak heating. For ablative/expendable, minimize total heat. Therefore reusable like Starship wants lift during high Mach reentry for lower peak, but higher total heat.ShadowZone: So this increases the probability of Starship having to do multiple aerobrake passes when going to Mars or returning, correct?
Elon: For sure more than one pass coming back to Earth. To Mars could maybe work single pass, but two passes probably wise.​[Or discuss on r/SpaceXLounge post or Starship thread]

Submitted September 24, 2019 at 08:57PM by RegularRandomZ
via reddit https://ift.tt/2lpUjjH