Johnny Robinson's user avatar
Johnny Robinson's user avatar
Johnny Robinson's user avatar
Johnny Robinson
  • Member for 6 years, 1 month
  • Last seen more than a month ago
38 votes
3 answers
3k views

Flung debris in lunar landing

33 votes
2 answers
844 views

How deep could a lunar mine go?

26 votes
6 answers
10k views

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

16 votes
2 answers
3k views

Why will the BFS reenter broadside rather than engine first?

12 votes
1 answer
528 views

For a launch, how is safe viewing distance determined?

10 votes
2 answers
1k views

Range of BFR as single stage

10 votes
1 answer
4k views

Constant lunar sub-surface temperature

10 votes
3 answers
627 views

Liquid settling in tanks during orbital refueling

10 votes
3 answers
4k views

Overcoming pressure differential to feed fuel into rocket engines

9 votes
1 answer
347 views

Lunar launch pad cooling

8 votes
2 answers
686 views

Progress of the raptor engine

7 votes
1 answer
99 views

Are new Falcon cores still being built at Hawthorne?

7 votes
2 answers
182 views

Angle of meteoroid and debris strikes on ISS

7 votes
1 answer
317 views

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

7 votes
1 answer
193 views

Meteor color hints at chemistry

7 votes
1 answer
479 views

When will they be landing Dragon retropropulsively?

7 votes
1 answer
197 views

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

6 votes
2 answers
1k views

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

6 votes
0 answers
119 views

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

6 votes
3 answers
2k views

New BFR Engine arrangement

6 votes
2 answers
659 views

Active liquid cooling for heat shield

5 votes
1 answer
3k views

Delta-V of Starlink Satellites

5 votes
0 answers
300 views

Power supply for StarShip?

4 votes
3 answers
177 views

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

4 votes
1 answer
258 views

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

3 votes
1 answer
142 views

Have carbonaceous chondrite meteors been found on the moon?

3 votes
2 answers
336 views

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

3 votes
0 answers
610 views

Safety of carbon fiber oxygen tanks

3 votes
1 answer
650 views

What will the heat shield on the BFS be made of

3 votes
1 answer
170 views

Chemical resources on the moon in relation to human occupation