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Scott Manley

@DJSnM • 689,202 subscribers

Internet Rocket Scientist, Gamer, Astronomer, Dad, Scotsman, Pilot. Makes videos about space and science https://t.co/mLfUsogKq5

Shorts

I slowed down and resynched the engine diagram during the booster engine restart, that's a pretty hard failure that damaged neighbours.

I slowed down and resynched the engine diagram during the booster engine restart, that's a pretty hard failure that damaged neighbours.

1,100,689 Aufrufe

So we finished stripping the engine down today and then spent the rest of the day putting it back together!

So we finished stripping the engine down today and then spent the rest of the day putting it back together!

31,143 Aufrufe

Damn, that’s another post ignition pad abort, the third in the last month.

Damn, that’s another post ignition pad abort, the third in the last month.

233,547 Aufrufe

2 months later the creator of Nuclear Design Bureau is still waiting for the US government to confirm that his video game that uses Minecraft level physics simulations is not a threat to national security.

2 months later the creator of Nuclear Design Bureau is still waiting for the US government to confirm that his video game that uses Minecraft level physics simulations is not a threat to national security.

442,800 Aufrufe

We've never seen anything like this recording of a landing on another world.

We've never seen anything like this recording of a landing on another world.

1,973,775 Aufrufe

Other things I saw today: this pilot tried to land 3 times before giving up, poor guy. Aircraft passed 800 hours logged time. Saw a big burn scar near KCPU, and some big storms brewing over the Sierras.

Other things I saw today: this pilot tried to land 3 times before giving up, poor guy. Aircraft passed 800 hours logged time. Saw a big burn scar near KCPU, and some big storms brewing over the Sierras.

90,674 Aufrufe

Sad to hear Wally has gone west. I remember watching NS-16 and when the capsule was decelerating at Max g loading she was whooping and cheering while everyone else was silent.

Sad to hear Wally has gone west. I remember watching NS-16 and when the capsule was decelerating at Max g loading she was whooping and cheering while everyone else was silent.

152,013 Aufrufe

So... is this some pyrotechnic to nail the legs to the deck?

So... is this some pyrotechnic to nail the legs to the deck?

766,885 Aufrufe

Wish I was at Oshkosh

Wish I was at Oshkosh

86,028 Aufrufe

Flashback to 3 years ago when I predicted this catch mechanism in Kerbal Space Program

Flashback to 3 years ago when I predicted this catch mechanism in Kerbal Space Program

1,193,344 Aufrufe

This is the first time I’ve seen a plane with this feature

This is the first time I’ve seen a plane with this feature

171,649 Aufrufe

I still don't have a good explanation for why the booster flipped the wrong direction beyond the notion that it's an unstable situation and small perturbations can quickly grow in ways not planned.

I still don't have a good explanation for why the booster flipped the wrong direction beyond the notion that it's an unstable situation and small perturbations can quickly grow in ways not planned.

188,495 Aufrufe

A lot of the news stories talking about the uncommanded A320 dive talk about losing 100 feet over 10 seconds. That really doesn't sell the suddenness of this pitch down. It essentially performed a zero g dive for a second then pulled out at about 1.4g.

A lot of the news stories talking about the uncommanded A320 dive talk about losing 100 feet over 10 seconds. That really doesn't sell the suddenness of this pitch down. It essentially performed a zero g dive for a second then pulled out at about 1.4g.

450,215 Aufrufe

The WB-57 involved in todays incident shot this footage a couple of months ago:

The WB-57 involved in todays incident shot this footage a couple of months ago:

296,140 Aufrufe

I was wondering whether the tablets that were used on Starliner would be iPads like everyone else, or Android.... They're windows tablets.

I was wondering whether the tablets that were used on Starliner would be iPads like everyone else, or Android.... They're windows tablets.

807,007 Aufrufe

One last observation - during hot staging the booster velocity drops rapidly for a moment, this is faster than can be explained by gravity. If this is accurate the booster had negative g loading for a moment, possibly lifting propellent off bottom of tanks. It's very short, but still a bigger deceleration than I expected

One last observation - during hot staging the booster velocity drops rapidly for a moment, this is faster than can be explained by gravity. If this is accurate the booster had negative g loading for a moment, possibly lifting propellent off bottom of tanks. It's very short, but still a bigger deceleration than I expected

981,634 Aufrufe

And here's a comparison to the 2kt Post test.

And here's a comparison to the 2kt Post test.

107,650 Aufrufe

Whoever setup the sound this time deserves an award

Whoever setup the sound this time deserves an award

112,075 Aufrufe

Just look at the massive radiators that aren't on there, because the whole thing is running on solar power anyway.

Just look at the massive radiators that aren't on there, because the whole thing is running on solar power anyway.

212,704 Aufrufe

When I visited NASA Ames back in July I got a look at this supercomputer simulation showing why SLS has acquired a pair of strakes next to the SRBs. These work as vortex generators that inhibit the large oscillations in the airflow between the core and boosters

When I visited NASA Ames back in July I got a look at this supercomputer simulation showing why SLS has acquired a pair of strakes next to the SRBs. These work as vortex generators that inhibit the large oscillations in the airflow between the core and boosters

249,989 Aufrufe

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Precision landing and Viking funeral all in one! Also, I think I still notice some orange colour on there

Precision landing and Viking funeral all in one! Also, I think I still notice some orange colour on there

8,755,992 Aufrufe • vor 3 Monaten

I wonder where this announcer is today

I wonder where this announcer is today

360,913 Aufrufe • vor 11 Tagen

Magnificent!

Magnificent!

3,442,010 Aufrufe • vor 3 Monaten

And there's the soft landing, maybe next time it'll end in a catch?

And there's the soft landing, maybe next time it'll end in a catch?

486,160 Aufrufe • vor 1 Monat

Sound synchronized from NSF - NASASpaceflight.com footage

Sound synchronized from NSF - NASASpaceflight.com footage

1,099,724 Aufrufe • vor 3 Monaten

It's hard to tell how much the video screen footage is slowed down, but here's a rough attempt at syncing two views:

It's hard to tell how much the video screen footage is slowed down, but here's a rough attempt at syncing two views:

205,764 Aufrufe • vor 23 Tagen

No audio, but the text transcription from the MD-11 crash synced to the reconstruction using the data recorder.

No audio, but the text transcription from the MD-11 crash synced to the reconstruction using the data recorder.

969,604 Aufrufe • vor 3 Monaten

Watch as air traffic clears the debris zones

Watch as air traffic clears the debris zones

5,144,788 Aufrufe • vor 1 Jahr

While travelling to Tau Ceti the Hail Mary would reach 99.5% of the speed of light. At that speed the aberration bends most of the light in front of it, and the combination of beaming and blue shift is as bright as indoor lighting... but very blue.

While travelling to Tau Ceti the Hail Mary would reach 99.5% of the speed of light. At that speed the aberration bends most of the light in front of it, and the combination of beaming and blue shift is as bright as indoor lighting... but very blue.

168,160 Aufrufe • vor 28 Tagen

So Ubisoft managed to release a tiny corrupted file instead of a game? Meanwhile, here's a 32 byte program that does something far more interesting.

So Ubisoft managed to release a tiny corrupted file instead of a game? Meanwhile, here's a 32 byte program that does something far more interesting.

32,303 Aufrufe • vor 6 Tagen

Another view of the Long March 7A failure, from Chinese social media. Judging by timing and the visible vapour trail it was probably close to Max-Q

Another view of the Long March 7A failure, from Chinese social media. Judging by timing and the visible vapour trail it was probably close to Max-Q

105,492 Aufrufe • vor 23 Tagen

Thermal protection tiles used on reusable spacecraft are so low density, and low conduction that it's possible to carefully handle a tile moments after it comes out of the furnace - as demonstrated by Matthew Dominick while visiting NASA Ames Thermal Protection Materials lab

Thermal protection tiles used on reusable spacecraft are so low density, and low conduction that it's possible to carefully handle a tile moments after it comes out of the furnace - as demonstrated by Matthew Dominick while visiting NASA Ames Thermal Protection Materials lab

194,811 Aufrufe • vor 1 Monat

Here's the reconstruction of the view from AA472 based upon the last few minutes of data. It had been switched from RWY1 to RWY33 to help with traffic flow, the Helicopter was instructed to avoid the airliner and reported traffic in sight. It's very likely they were looking at the wrong plane. Crew of jet would not be able to see helicopter and the proximity warning systems were less reliable with the older transponder design on the helicopter.

Here's the reconstruction of the view from AA472 based upon the last few minutes of data. It had been switched from RWY1 to RWY33 to help with traffic flow, the Helicopter was instructed to avoid the airliner and reported traffic in sight. It's very likely they were looking at the wrong plane. Crew of jet would not be able to see helicopter and the proximity warning systems were less reliable with the older transponder design on the helicopter.

2,225,578 Aufrufe • vor 1 Jahr

A great day for engineering:

A great day for engineering:

2,341,695 Aufrufe • vor 1 Jahr

Skyroot 3rd stage separation almost went like Falcon 1 flight 3 - I think their thrust decay was slower than expected.

Skyroot 3rd stage separation almost went like Falcon 1 flight 3 - I think their thrust decay was slower than expected.

152,851 Aufrufe • vor 1 Monat

So I made the objects so hot they glow, which seems suboptimal, but this is all the starlink satellites currently in orbit using Universe Sandbox Universe Sandbox

So I made the objects so hot they glow, which seems suboptimal, but this is all the starlink satellites currently in orbit using Universe Sandbox Universe Sandbox

589,007 Aufrufe • vor 6 Monaten

Oh boy, it just gets worse and worse

Oh boy, it just gets worse and worse

1,749,802 Aufrufe • vor 2 Jahren

Recreated the flight of N257BW which crashed as it returned to KSVH minutes after takeoff, it looks like it had performance issues and then ran out of energy on final approach to landing. Sad to hear this was Greg Biffle and his family.

Recreated the flight of N257BW which crashed as it returned to KSVH minutes after takeoff, it looks like it had performance issues and then ran out of energy on final approach to landing. Sad to hear this was Greg Biffle and his family.

551,413 Aufrufe • vor 8 Monaten

So, based on the SpaceX FCC filing, here's a SSO halo and multiple 30 degree LEO shells:

So, based on the SpaceX FCC filing, here's a SSO halo and multiple 30 degree LEO shells:

423,058 Aufrufe • vor 6 Monaten

After flying F-14's for the aerial stunts in Top Gun, Scott Altman became an Astronaut, here's him landing the shuttle. I think he planted that nose wheel like he was landing on a carrier.

After flying F-14's for the aerial stunts in Top Gun, Scott Altman became an Astronaut, here's him landing the shuttle. I think he planted that nose wheel like he was landing on a carrier.

1,518,500 Aufrufe • vor 2 Jahren