User Ashvin

71 votes

2 answers

7k views

Can a human land on Deimos using pressurized deodorant cans?

asked Apr 27, 2021 at 6:16

15 votes

2 answers

2k views

Till what altitude above earth sounds can be heard?

asked Sep 10, 2020 at 1:02

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?

asked May 20 at 4:11

11 votes

1 answer

1k views

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

asked May 11 at 16:47

11 votes

2 answers

1k views

What are the benefits of supersynchronous transfer orbits?

asked Jan 10 at 10:20

10 votes

3 answers

2k views

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

asked Feb 3 at 13:21

10 votes

1 answer

379 views

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

asked Feb 12 at 16:54

9 votes

0 answers

190 views

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

asked Oct 6, 2020 at 17:22

9 votes

2 answers

2k views

Can a satellite orbit the ISS?

asked Jan 8, 2021 at 6:27

9 votes

1 answer

579 views

Can the space shuttle use OMS engines during landing?

asked Jan 24, 2021 at 7:04

8 votes

1 answer

493 views

What are the disadvantages of pneumatic stage separation systems?

asked Feb 22 at 8:20

7 votes

1 answer

204 views

Why do rockets coast before secondary payload deployment?

asked Aug 31, 2020 at 1:01

7 votes

1 answer

1k views

What is the terminal velocity of SpaceX Starship?

asked Dec 10, 2020 at 23:32

7 votes

2 answers

1k views

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

asked Oct 12, 2020 at 18:45

7 votes

4 answers

2k views

How are vacuum optimized engines tested without disintegrating them?

asked Oct 22, 2021 at 7:44

5 votes

1 answer

525 views

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

asked Dec 28, 2021 at 6:48

5 votes

1 answer

396 views

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

asked Dec 29, 2021 at 8:34

4 votes

0 answers

42 views

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

asked Dec 7, 2020 at 1:10

4 votes

1 answer

172 views

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

asked May 27, 2021 at 3:18

3 votes

1 answer

168 views

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

asked Mar 2, 2021 at 20:34

3 votes

2 answers

206 views

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

asked Apr 4 at 9:58

3 votes

1 answer

207 views

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

asked Jun 14 at 8:50

3 votes

2 answers

593 views

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

asked Sep 19 at 16:02

3 votes

3 answers

157 views

Which orbital class rocket has highest TWR at liftoff?

asked Sep 21 at 17:19

2 votes

2 answers

286 views

Can the Space Shuttle land on Mars assuming there is a paved surface for landing?

asked Jan 7, 2021 at 17:38

2 votes

0 answers

90 views

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

asked Feb 12, 2021 at 15:56

0 votes

0 answers

38 views

How much delta v did the space shuttle use for orbital insertion? [duplicate]

asked Jun 6 at 11:13

-3 votes

1 answer

170 views

Can starship land back on earth after sending 100 tons to LEO? [closed]

asked May 25 at 7:52

Stack Exchange Network

28 Questions

Can a human land on Deimos using pressurized deodorant cans?

Till what altitude above earth sounds can be heard?

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

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

What are the benefits of supersynchronous transfer orbits?

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

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

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

Can a satellite orbit the ISS?

Can the space shuttle use OMS engines during landing?

What are the disadvantages of pneumatic stage separation systems?

Why do rockets coast before secondary payload deployment?

What is the terminal velocity of SpaceX Starship?

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

How are vacuum optimized engines tested without disintegrating them?

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

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

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

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

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

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

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

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

Which orbital class rocket has highest TWR at liftoff?

Can the Space Shuttle land on Mars assuming there is a paved surface for landing?

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

How much delta v did the space shuttle use for orbital insertion? [duplicate]

Can starship land back on earth after sending 100 tons to LEO? [closed]