User Steve Pemberton

28 votes

What assumptions were made about the sphericity of the Moon for the Apollo program?

answered Sep 30 at 19:14

18 votes

Going over the Apollo fuel numbers and I have many questions

answered Jul 13 at 0:28

16 votes

Why would astronauts need a wristwatch and a separate timer?

answered Sep 19 at 19:31

14 votes

What kept the Soviets from going to the Moon (before the US)?

answered Nov 27 at 14:50

10 votes

Accepted

What are these "fountains" during the deluge for the Super Heavy launch?

answered Nov 19 at 2:18

7 votes

What is the significance of a heat flux value of 1135 W/m^2 when jettisoning the payload fairing?

answered Sep 29 at 8:28

6 votes

Accepted

What are these weird things on the McDonnell Douglas X-33?

answered Jul 10 at 10:38

6 votes

Perseverance individual sample collection post-mission; what stops them from blowing away or getting covered and hidden by dust?

answered Jul 21 at 23:20

6 votes

Is the vestibular system ever useful in spaceflight?

answered Aug 26 at 9:01

5 votes

What is this NASA Spaceflight article trying to explain?

answered Sep 23 at 19:00

4 votes

Before we build a Mars colony, why don't we build a 100% self-sustainable test colony in the Antarctic?

answered Oct 25 at 13:21

4 votes

How high was the Apollo after trans-lunar injection usually?

answered Jul 24 at 2:04

4 votes

How much reentry speed did the Shuttles shed by doing a series of sharp turns?

answered Jul 7 at 5:08

4 votes

Is it easier to detect a satellite than an aircraft with a land-based radar?

answered Nov 30 at 1:18

4 votes

Accepted

How beaten up would Voyager 1 be in 40,000 years?

answered Nov 30 at 17:16

3 votes

Apollo 11 mission report shows velocity well below escape velocity thousands of km on the way to the Moon

answered Jul 16 at 1:11

2 votes

Why not try to land all SpaceX Starships and boosters?

answered Jul 9 at 2:23

2 votes

Images of Starry night sky (maybe with milky way galaxy) from the Moon?

answered Sep 8 at 17:55

2 votes

Which satellite is this very bright object? - part 2

answered Nov 2 at 11:54

2 votes

Which 6 spacecraft had the biggest effect on pushing the “Final Frontier?”

answered Oct 12 at 16:43

2 votes

Accepted

Carving of rocks on the moon

answered Oct 24 at 13:24

1 vote

Deorbit ISS vs. Preserve ISS as raw materials for ISM?

answered Sep 27 at 18:06

0 votes

Why does the heatshield have to be on the outside?

answered yesterday

-1 votes

Why doesn't the BFR/Starship have a launch escape system?

answered Nov 15 at 14:11

Stack Exchange Network

24 Answers

What assumptions were made about the sphericity of the Moon for the Apollo program?

Going over the Apollo fuel numbers and I have many questions

Why would astronauts need a wristwatch and a separate timer?

What kept the Soviets from going to the Moon (before the US)?

What are these "fountains" during the deluge for the Super Heavy launch?

What is the significance of a heat flux value of 1135 W/m^2 when jettisoning the payload fairing?

What are these weird things on the McDonnell Douglas X-33?

Perseverance individual sample collection post-mission; what stops them from blowing away or getting covered and hidden by dust?

Is the vestibular system ever useful in spaceflight?

What is this NASA Spaceflight article trying to explain?

Before we build a Mars colony, why don't we build a 100% self-sustainable test colony in the Antarctic?

How high was the Apollo after trans-lunar injection usually?

How much reentry speed did the Shuttles shed by doing a series of sharp turns?

Is it easier to detect a satellite than an aircraft with a land-based radar?

How beaten up would Voyager 1 be in 40,000 years?

Apollo 11 mission report shows velocity well below escape velocity thousands of km on the way to the Moon

Why not try to land all SpaceX Starships and boosters?

Images of Starry night sky (maybe with milky way galaxy) from the Moon?

Which satellite is this very bright object? - part 2

Which 6 spacecraft had the biggest effect on pushing the “Final Frontier?”

Carving of rocks on the moon

Deorbit ISS vs. Preserve ISS as raw materials for ISM?

Why does the heatshield have to be on the outside?

Why doesn't the BFR/Starship have a launch escape system?