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Barry Jenakuns's user avatar
Barry Jenakuns's user avatar
Barry Jenakuns's user avatar
Barry Jenakuns
  • Member for 5 years
  • Last seen this week
  • Australia
9 votes
4 answers
1k views

How difficult is it to convert a hypergolic based Moon human lander to a cryogenic one?

9 votes
1 answer
343 views

How much equipment will be required to mine 600 tons of water ice on Mars?

7 votes
2 answers
2k views

How big will a space billboard have to be to be visible?

7 votes
0 answers
78 views

How much did satellites and space exploration enable the development of solar panels?

6 votes
1 answer
156 views

How problematic is debris for Starship storage/depots?

6 votes
1 answer
473 views

RS-25E cost estimate but sentence confusing (approximately: help; maybe)?

5 votes
2 answers
140 views

What propellant (coolant) mass is required for an actively cooled heat shield?

4 votes
1 answer
170 views

What is the delta V required to access a polar lunar orbit?

4 votes
1 answer
154 views

Why has China been slow in phasing out CZ-2,3,4?

4 votes
1 answer
305 views

Could the Electron launch a cubesat to Mars

3 votes
1 answer
88 views

Is there potential for Trident to visit a KBO like New Horizons did?

3 votes
0 answers
196 views

For the upcoming Chinese Spaceplane launch, will the spaceplane be delivered directly into a LEO?

3 votes
1 answer
591 views

Is Starlink VisorSat really dimmer?

3 votes
0 answers
109 views

How big does the Martian supply chain need to be, to be self sufficient?

3 votes
0 answers
96 views

Was Dart antenna tested using a DSN antenna located in Australia?

2 votes
1 answer
1k views

Does a fully fuelled Starship in LEO have 0kg payload to Jupiter?

1 vote
1 answer
178 views

Did the US hide 4179 Toutatis orbital data after China announced intentions of going there?

1 vote
0 answers
45 views

How big does a LEO relay satellite optical communication package need to be to support cislunar operations?