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Ashvin's user avatar
Ashvin
  • Member for 3 years, 9 months
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  • India
71 votes
2 answers
7k views

Can a human land on Deimos using pressurized deodorant cans?

14 votes
2 answers
3k views

Till what altitude above earth sounds can be heard?

14 votes
1 answer
1k views

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

12 votes
1 answer
1k views

Why was the Atlas V's SRB kept attached for 1 minute after burnout in the OFT-2 mission?

12 votes
1 answer
343 views

Why is the water pumped out of the holding tank a minute before Falcon 9 liftoff?

11 votes
2 answers
2k views

What are the benefits of supersynchronous transfer orbits?

11 votes
1 answer
1k views

Does the Merlin vacuum engine on SpaceX's Falcon 9 gimbal?

10 votes
3 answers
3k views

Why do $\text{CH}_4$ (Raptor) engines produce less soot than RP-1 (Merlin) engines?

10 votes
1 answer
478 views

What are the advantages of air lit solid boosters in PSLV XL?

10 votes
1 answer
783 views

Can the space shuttle use OMS engines during landing?

9 votes
2 answers
2k views

Can a satellite orbit the ISS?

9 votes
4 answers
2k views

How are vacuum optimized engines tested without disintegrating them?

8 votes
1 answer
755 views

What are the disadvantages of pneumatic stage separation systems?

7 votes
1 answer
219 views

Why do rockets coast before secondary payload deployment?

7 votes
1 answer
1k views

What is the terminal velocity of SpaceX Starship?

7 votes
2 answers
2k views

Why does the Falcon 9 use turbopumps as well as helium pressurisation system?

7 votes
1 answer
2k views

Did Boeing's Starliner do an inflight abort test?

6 votes
1 answer
701 views

Is there any website where we can view live orbit of all satellites to scale?

5 votes
1 answer
930 views

What is the delta v required for insertion to sun-earth L2?

5 votes
1 answer
443 views

Are Artemis missions launched into a free return trajectory like the Apollo program?

4 votes
0 answers
47 views

What does diiferent colours in orbital path seen in the CRS 21 launch video indicate?

4 votes
1 answer
238 views

Can rocket engines which use hypergolic propellants be augmented with LOX for increased efficiency?

3 votes
2 answers
217 views

What would have happened if lightning struck the Orion LES instead of the umbilical tower?

3 votes
1 answer
272 views

Can Falcon 9's engines be ignited more than 4 times if there is enough TEA-TEB?

3 votes
1 answer
250 views

What would happen during an inflight abort in a Falcon 9 if the booster engines did not shut down?

3 votes
2 answers
1k views

What is the differences in between SLS Block I and SLS Block 2?

3 votes
3 answers
531 views

Which orbital class rocket has highest TWR at liftoff?

3 votes
1 answer
85 views

What are the differences between Skyroot Aerospace's Vikram-S and Vikram-1?

2 votes
1 answer
418 views

Does the viasat 3 that will be launching today have expendable side booster

2 votes
0 answers
98 views

Why are fins located on stage 2 of Iranian rocket Zol Janah?