Sergiy Lenzion's user avatar
Sergiy Lenzion's user avatar
Sergiy Lenzion's user avatar
Sergiy Lenzion
  • Member for 2 years, 10 months
  • Last seen more than a week ago
  • Australia
19 votes
1 answer
1k views

Did Streptococcus mitis survive 950 days in the lunar environment?

18 votes
1 answer
2k views

Did any of the Space Shuttles land through rain or rainclouds?

17 votes
1 answer
2k views

Apollo CM heat shield burnt pattern around RCS thrusters

13 votes
1 answer
961 views

Reentry without pressure suits in Apollo: was there a formal risk assesment?

12 votes
1 answer
2k views

How do astronauts brew tea on ISS and what brewing temperature is common?

11 votes
0 answers
312 views

Were there any launch vehicles with so heavily pronounced Plume Induced Flow Separation (PIFS), other than Saturn V?

11 votes
3 answers
1k views

How did LM circuit breakers operate? (famous engine arm CB broken by Aldrin)

11 votes
1 answer
297 views

Were any mammals born in space (or are there any confirmed planned missions to breed them)?

10 votes
1 answer
716 views

Who was the first to successfully implement on practice ablative heat shield?

10 votes
1 answer
902 views

How would the state vector be updated in the Apollo Guidance Computer during coasting to/from the moon if communication with Earth was lost entirely?

9 votes
1 answer
524 views

Did Apollo astronauts play on the Moon their pre-recorded music?

8 votes
2 answers
508 views

How much of the printed materials (manuals, instructions etc.) were allocated for the crew's use in Space Shuttles?

8 votes
2 answers
553 views

Did NASA ever supply astronauts with canned food?

8 votes
1 answer
369 views

Were flown lunar rover miniature license plates approved for the Apollo-15 flight?

8 votes
5 answers
2k views

Does trajectory of an object orbiting a planet depend on the object's mass? (With hypothetical Apollo example)

7 votes
2 answers
717 views

What is the fate of SLA fairings jettisoned from lunar mission spacecrafts?

7 votes
1 answer
293 views

Were there any cases of woodpeckers damaging Shuttle External Tank insulation other than that of STS-70?

7 votes
2 answers
473 views

What was the first rocket with de Laval (convergent-divergent) nozzle to fly?

7 votes
1 answer
379 views

How exactly did Jupiter change Ulysses orbital plane from nearly ecliptic to polar?

6 votes
0 answers
829 views

Why is the diameter of the boosters of some launch vehicles smaller than the diameter of their payload fairing?

6 votes
2 answers
409 views

How hot was the surface of RTG radiator which powered ALSEP on Apollo-12?

6 votes
1 answer
664 views

How cryogenic oxygen was heated up for CM cabin repressurization?

5 votes
1 answer
357 views

What was back-up plan in case of Apollo CSM Primary Guidance System IMU went to gimbal lock?

5 votes
1 answer
293 views

What was the primary role of epoxy layer between metal structure and insulation foam on External Tank of Space Shuttle?

5 votes
1 answer
286 views

How exactly was Apollo CSM attitude changed (from a current one to a new required one)?

4 votes
1 answer
257 views

What will happen to a spacecraft if it cancels its galactic velocity?

4 votes
1 answer
392 views

Who are these people inside Apollo Command Module (presumably posing for advertisement photoshoot)?

4 votes
1 answer
207 views

How exactly is the balance of minerals handled on ISS with the use of reclaimed (demineralised) water for human consumption?

4 votes
2 answers
512 views

What is the reason for secondary oscillations in apogee and perigee plots for objects 41332 and 41333?

4 votes
0 answers
290 views

Solar system galactic velocity vector relative to ecliptic plane