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Steve Pemberton's user avatar
Steve Pemberton's user avatar
Steve Pemberton's user avatar
Steve Pemberton
  • Member for 11 months
  • Last seen this week
28 votes

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

27 votes
Accepted

Why some USA launches are visible in Europe

23 votes
Accepted

Eye Spy: Where are the other two (of six) vehicles docked to the ISS in this Maxar image (& what are they?)

23 votes
Accepted

Which was the first liquid non hypergolic engine to be reignited in space?

19 votes

Has any vehicle prior to Starship's IFT3 "taken a selfie" during reentry?

18 votes

Going over the Apollo fuel numbers and I have many questions

16 votes

Why would astronauts need a wristwatch and a separate timer?

16 votes

Why is there never enough room on satellites to hold all the equipment needed?

16 votes
Accepted

Did IFT 3's Starship attempt re-entry with its payload bay door open?

15 votes

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

13 votes
Accepted

What spares were taken on Apollo missions, and what was left behind? The question of gloves

12 votes

Who navigates the ISS?

10 votes
Accepted

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

9 votes
Accepted

Why Did Starship 3 launch with its Hypersonic Grid Fins fully deployed?

8 votes

Ingenuity extended static mission science possibilites

7 votes

Sonic Boom Location

7 votes

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

7 votes

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

6 votes

Is the vestibular system ever useful in spaceflight?

6 votes
Accepted

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

6 votes

Is Delta the same as SpaceShip III and if not, has SpaceShip III been de facto cancelled?

6 votes
Accepted

A cancelled EVA for expedition 70?

5 votes

Why did the SLS only reach a TLI speed of 17500 mph

5 votes
Accepted

What is this NASA Spaceflight article trying to explain?

4 votes

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

4 votes

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

4 votes

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

4 votes

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

4 votes
Accepted

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

4 votes
Accepted

Will the last launch of the Delta rocket family cause changes to the liquid hydrogen supply chain?