From Youtube, "The launch of SpaceX's DM-2 mission taking NASA astronauts to the Space Station was the culmination of years of development, and more importantly years of political and management decisions... continue reading

posted by w1ndex 4 years 9 months 1 week ago • 45 views • 15:55

YouTube description: 50 Years Ago Apollo 13 was preparing to launch on a mission that would become famous for the wrong reasons, 56 Hours into the mission an oxygen tank would explode, blowing the side... continue reading

posted by Aard Vark (oritteropo) 4 years 11 months 1 week ago • 30 views • 12:18

YouTube description: It's an often told story about Apollo 12 getting struck by lightning, crippling the command module in flight and John Aaron in mission control figuring out the exact switch to flip... continue reading

posted by Aard Vark (oritteropo) 5 years 5 months 3 weeks ago • 261 views • 13:55

YouTube description: I kept getting asked about a sequence from the Apollo 11 documentary showing the ignition of a Saturn V upper Stage, known as the S-IVB, in space. After asking around I tracked... continue reading

posted by Aard Vark (oritteropo) 5 years 11 months 3 weeks ago • 325 views • 11:08

YouTube description: Why does the exhaust from the Space shuttle boosters & engines look completely different? There's a huge variety in the appearance of rocket exhausts because different fuels, different... continue reading

posted by Aard Vark (oritteropo) 6 years 6 months 1 week ago • 493 views • 11:26

YouTube description: To quote from clickbait 'The answer might surprise you' - lots of references still say the mighty F-1 engine used on the Saturn V is the post powerful rocket motor ever, but, there... continue reading

posted by Aard Vark (oritteropo) 6 years 6 months 2 weeks ago • 805 views • 7:42

YouTube description: In the last 20 years it's been surprisingly common for space probes to end missions early because reaction wheels have failed, moreover there's been a large number of failures associated... continue reading

posted by Aard Vark (oritteropo) 6 years 6 months 3 weeks ago • 566 views • 7:10

YouTube description: Amazing high resolution photos of the Earth should show that the earth is oblate, but it's hard to see because the difference is about 0.3%. So here's a quick demo highlighting the difference. ... continue reading

posted by Aard Vark (oritteropo) 6 years 9 months 1 week ago • 624 views • 1:43

YouTube description: Vanguard 1 was the 4th satellite launched, after being beaten by Sputnik 1, 2 and Explorer 1, it also suffered from multiple high profile launch failures. However, 60 years on it's... continue reading

posted by Aard Vark (oritteropo) 6 years 12 months ago • 410 views • 6:41

YouTube description: If you're landing a rocket then waiting to the last minute slamming on the brakes actually saves fuel over slower, more considered approaches to landing.... continue reading

posted by Aard Vark (oritteropo) 7 years 2 weeks ago • 627 views • 8:50

YT - Everyday Astronaut Published on Jan 24, 2018 It’s ALIVE!!!!! For the very first time, the Falcon Heavy has successfully lit all 27 of its mighty Merlin engines in preparation for its maiden launch.... continue reading

posted by Buck 7 years 1 month 2 weeks ago • 175 views • 8:38

YouTube description: Every time a Delta IV launches people inevitably ask if the rocket consuming fireball is supposed to happen. The answer is yes, this is caused by the rocket purging its engines... continue reading

posted by Aard Vark (oritteropo) 7 years 1 month 3 weeks ago • 803 views • 6:14

One thing I should point out is that Mr. Manley consistently gets Karl Schwarzschild's name wrong. It's Schwarz Schild (black shield) and pronounced more like shield (except the d is a t sound and it's... continue reading

posted by Aard Vark (oritteropo) 8 years 3 months ago • 1,050 views • 8:00