User Hobbes

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What happens to the Falcon 9 second stage after payload separation?

Apr 20 at 15:14 Clayborn Thomas 1

6

34

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2

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6k

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What would it feel like to be in a Martian dust storm?

mars colonization environment dust weather

Dec 2 '13 at 20:58 Community♦ 1

2

28

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6

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5k

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Why did it take so long for methane to be used as a rocket propellant?

rockets spacex engine-design fuel raptor

Jan 14 '18 at 1:50 Baz 1

5

28

votes

3

answers

5k

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Starting a liquid fuel engine in zero gravity

propulsion orbit

Nov 7 '14 at 3:26 Community♦ 1

3

20

votes

1

answer

7k

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Voyager 3: what would have been its mission, and why was it canceled?

nasa probe voyager canceled-project

Aug 24 at 15:37 Oliver 1

20

votes

1

answer

497

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Does the proximity of engines in engine clusters cause interference?

launch falcon-9 engines

Jul 9 '15 at 21:08 geoffc 54.7k

1

17

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1

answer

1k

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Ariane 4: shroud around stage?

launch ariane

Nov 8 '13 at 17:02 Undo 10.2k

1

15

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2

answers

1k

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NASA Launch Control: was all of its capacity ever used?

nasa apollo-program launch-site multi-launch

Sep 17 '15 at 12:37 Hobbes 88k

14

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1

answer

1k

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Why did NASA discontinue use of the MMU?

astronauts space-shuttle eva

Mar 23 '14 at 15:30 Community♦ 1

1

13

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4

answers

2k

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What makes a payload fairing so expensive?

manufacture fairings

Jun 17 at 22:19 Mark G 9

1

13

votes

1

answer

1k

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Where is Giotto now?

probe comet esa giotto

Nov 14 '13 at 18:16 PearsonArtPhoto♦ 81k

2

12

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4

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Was Hubble really related to spy satellites?

artificial-satellite telescope optical hubble military

Dec 16 at 5:17 uhoh 35.8k

3

12

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4

answers

7k

views

How big would a manned ascent stage for Mars need to be?

mars rockets propulsion engineering stages

Oct 26 '15 at 16:08 Organic Marble 54.1k

2

11

votes

3

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1k

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How is the software for scientific space missions developed?

artificial-satellite probe software

Jun 5 at 9:36 jeancallisti 81

2

11

votes

7

answers

3k

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Orbital mechanics: trying to understand counterintuitive behavior (braking to overtake)

orbital-mechanics

Jan 2 '18 at 12:19 Hobbes 88k

10

votes

1

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496

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How does the Falcon 9 first stage land on the moving surface of the barge?

spacex falcon-9 landing first-stage

Jun 3 '16 at 19:17 Community♦ 1

10

votes

1

answer

347

views

What were the differences between the LLRV and LLTV?

crewed-spaceflight apollo-program nasa training lltv

Jan 8 '14 at 17:46 oefe 1,846

1

8

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3

answers

2k

views

Atmospheric density vs. altitude

atmosphere atmospheric-drag

Nov 14 at 20:39 Organic Marble 54.1k

3

8

votes

2

answers

2k

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Why can't New Horizons send data and do observations at the same time?

voyager new-horizons

Jul 20 '15 at 18:06 Hobbes 88k

1

7

votes

1

answer

693

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Why do we differentiate between astronauts and cosmonauts?

astronauts terminology cosmonaut

Apr 14 '14 at 12:26 TildalWave 62.3k

7

votes

2

answers

1k

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What is the rationale behind the manned versions of SLS?

launch rockets nasa orion-spacecraft

Feb 12 '14 at 15:26 Community♦ 1

6

votes

1

answer

262

views

What does the ISS Mission control center do?

iss communication mission-control

Nov 21 at 4:44 Dr Sheldon 4,641

6

votes

3

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933

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How does the Rocket Equation work when you use boosters?

rocket-equation

Oct 21 at 5:30 uhoh 35.8k

6

votes

3

answers

472

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What is the correlation between the cost of a satellite and its lifetime?

artificial-satellite economics orbital-lifetime

Apr 25 at 11:17 Georgie 84

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6

votes

1

answer

734

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Launch windows to Mars

orbital-mechanics mars

Nov 3 '16 at 22:33 Mark Adler 48.5k

1

6

votes

2

answers

2k

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Does the second stage of the Falcon 9 have RCS thrusters?

spacex falcon-9 attitude design engines

Aug 15 '16 at 7:25 Hobbes 88k

6

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2

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465

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Is there an optimal launch inclination for interplanetary launches?

launch mars orbital-mechanics

Mar 15 '16 at 9:12 Community♦ 1

6

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1

answer

3k

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Why does the ISS not use the most efficient solar panels available?

iss solar-power

Jul 1 '15 at 11:19 Community♦ 1

2

5

votes

2

answers

363

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How much of the sky can the JWST see?

james-webb-telescope

Mar 24 '16 at 12:22 AtmosphericPrisonEscape 1,464

4

votes

1

answer

798

views

Why was the APAS docking system developed?

docking-port apollo-soyuz

Mar 20 '16 at 20:46 Community♦ 1

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31 Questions

What happens to the Falcon 9 second stage after payload separation?

What would it feel like to be in a Martian dust storm?

Why did it take so long for methane to be used as a rocket propellant?

Starting a liquid fuel engine in zero gravity

Voyager 3: what would have been its mission, and why was it canceled?

Does the proximity of engines in engine clusters cause interference?

Ariane 4: shroud around stage?

NASA Launch Control: was all of its capacity ever used?

Why did NASA discontinue use of the MMU?

What makes a payload fairing so expensive?

Where is Giotto now?

Was Hubble really related to spy satellites?

How big would a manned ascent stage for Mars need to be?

How is the software for scientific space missions developed?

Orbital mechanics: trying to understand counterintuitive behavior (braking to overtake)

How does the Falcon 9 first stage land on the moving surface of the barge?

What were the differences between the LLRV and LLTV?

Atmospheric density vs. altitude

Why can't New Horizons send data and do observations at the same time?

Why do we differentiate between astronauts and cosmonauts?

What is the rationale behind the manned versions of SLS?

What does the ISS Mission control center do?

How does the Rocket Equation work when you use boosters?

What is the correlation between the cost of a satellite and its lifetime?

Launch windows to Mars

Does the second stage of the Falcon 9 have RCS thrusters?

Is there an optimal launch inclination for interplanetary launches?

Why does the ISS not use the most efficient solar panels available?

How much of the sky can the JWST see?

Why was the APAS docking system developed?