User Johnny Robinson

38 votes

3 answers

3k views

Flung debris in lunar landing

asked Jan 3, 2017 at 4:02

33 votes

2 answers

844 views

How deep could a lunar mine go?

asked Oct 19, 2017 at 2:31

26 votes

6 answers

10k views

Why aren't rockets built with truss structures inside their fuel & oxidizer tanks to increase structural strength?

asked Aug 13, 2019 at 2:57

16 votes

2 answers

3k views

Why will the BFS reenter broadside rather than engine first?

asked Apr 10, 2018 at 13:45

12 votes

1 answer

528 views

For a launch, how is safe viewing distance determined?

asked Feb 4, 2018 at 16:51

10 votes

2 answers

1k views

Range of BFR as single stage

asked Dec 19, 2017 at 4:32

10 votes

1 answer

4k views

Constant lunar sub-surface temperature

asked Jan 26, 2017 at 0:17

10 votes

3 answers

627 views

Liquid settling in tanks during orbital refueling

asked Feb 1, 2017 at 3:37

10 votes

3 answers

4k views

Overcoming pressure differential to feed fuel into rocket engines

asked Jan 3, 2017 at 3:30

9 votes

1 answer

347 views

Lunar launch pad cooling

asked Oct 18, 2017 at 1:30

8 votes

2 answers

686 views

Progress of the raptor engine

asked Feb 14, 2018 at 0:32

7 votes

1 answer

99 views

Are new Falcon cores still being built at Hawthorne?

asked Apr 15, 2020 at 18:41

7 votes

2 answers

182 views

Angle of meteoroid and debris strikes on ISS

asked Aug 21, 2016 at 18:38

7 votes

1 answer

317 views

Has there been any program to develop tiny pod-like vehicles with manipulator arms for extra-vehicular activities?

asked Oct 8, 2016 at 21:47

7 votes

1 answer

193 views

Meteor color hints at chemistry

asked Feb 9, 2017 at 2:54

7 votes

1 answer

479 views

When will they be landing Dragon retropropulsively?

asked Feb 28, 2017 at 9:35

7 votes

1 answer

197 views

How many cargo flights are needed before Starship can carry people?

asked Mar 31 at 2:00

6 votes

2 answers

1k views

How much fuel, (in tons) will a dedicated tanker be able to deliver to a starship in LEO?

asked Sep 14, 2020 at 0:29

6 votes

0 answers

119 views

Can astronauts in currently planned pressure suits survive a cabin which cannot be repressurized?

asked Feb 13, 2020 at 6:29

6 votes

3 answers

2k views

New BFR Engine arrangement

asked Sep 19, 2018 at 17:26

6 votes

2 answers

659 views

Active liquid cooling for heat shield

asked Jan 18, 2019 at 16:15

5 votes

1 answer

3k views

Delta-V of Starlink Satellites

asked May 29, 2019 at 3:26

5 votes

0 answers

300 views

Power supply for StarShip?

asked Oct 30, 2019 at 18:27

4 votes

3 answers

177 views

Redeployable solar arrays. Do they exist? or are they being worked on?

asked Nov 8, 2019 at 3:52

4 votes

1 answer

258 views

Could a tank of water under the launch pad be used instead of a flame trench?

asked Nov 23, 2020 at 23:49

3 votes

1 answer

142 views

Have carbonaceous chondrite meteors been found on the moon?

asked Sep 25, 2019 at 3:33

3 votes

2 answers

336 views

Could a pressure suit be used for a short emergency EVA?

asked Mar 7, 2019 at 5:40

3 votes

0 answers

610 views

Safety of carbon fiber oxygen tanks

asked Apr 10, 2018 at 4:46

3 votes

1 answer

650 views

What will the heat shield on the BFS be made of

asked Feb 12, 2018 at 5:11

3 votes

1 answer

170 views

Chemical resources on the moon in relation to human occupation

asked Dec 22, 2016 at 3:12

Stack Exchange Network

37 Questions

Flung debris in lunar landing

How deep could a lunar mine go?

Why aren't rockets built with truss structures inside their fuel & oxidizer tanks to increase structural strength?

Why will the BFS reenter broadside rather than engine first?

For a launch, how is safe viewing distance determined?

Range of BFR as single stage

Constant lunar sub-surface temperature

Liquid settling in tanks during orbital refueling

Overcoming pressure differential to feed fuel into rocket engines

Lunar launch pad cooling

Progress of the raptor engine

Are new Falcon cores still being built at Hawthorne?

Angle of meteoroid and debris strikes on ISS

Has there been any program to develop tiny pod-like vehicles with manipulator arms for extra-vehicular activities?

Meteor color hints at chemistry

When will they be landing Dragon retropropulsively?

How many cargo flights are needed before Starship can carry people?

How much fuel, (in tons) will a dedicated tanker be able to deliver to a starship in LEO?

Can astronauts in currently planned pressure suits survive a cabin which cannot be repressurized?

New BFR Engine arrangement

Active liquid cooling for heat shield

Delta-V of Starlink Satellites

Power supply for StarShip?

Redeployable solar arrays. Do they exist? or are they being worked on?

Could a tank of water under the launch pad be used instead of a flame trench?

Have carbonaceous chondrite meteors been found on the moon?

Could a pressure suit be used for a short emergency EVA?

Safety of carbon fiber oxygen tanks

What will the heat shield on the BFS be made of

Chemical resources on the moon in relation to human occupation