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

3k 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, 2022 at 4:11

11 votes

1 answer

1k views

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

asked May 11, 2022 at 16:47

11 votes

2 answers

2k views

What are the benefits of supersynchronous transfer orbits?

asked Jan 10, 2022 at 10:20

10 votes

3 answers

3k views

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

asked Feb 3, 2022 at 13:21

10 votes

1 answer

462 views

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

asked Feb 12, 2022 at 16:54

10 votes

1 answer

730 views

Can the space shuttle use OMS engines during landing?

asked Jan 24, 2021 at 7:04

9 votes

0 answers

223 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

4 answers

2k views

How are vacuum optimized engines tested without disintegrating them?

asked Oct 22, 2021 at 7:44

8 votes

1 answer

665 views

What are the disadvantages of pneumatic stage separation systems?

asked Feb 22, 2022 at 8:20

7 votes

1 answer

216 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

2k views

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

asked Oct 12, 2020 at 18:45

6 votes

1 answer

658 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

756 views

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

asked Dec 29, 2021 at 8:34

5 votes

1 answer

426 views

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

asked Nov 16, 2022 at 13:17

4 votes

0 answers

44 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

225 views

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

asked May 27, 2021 at 3:18

3 votes

2 answers

216 views

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

asked Apr 4, 2022 at 9:58

3 votes

1 answer

252 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

1 answer

240 views

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

asked Jun 14, 2022 at 8:50

3 votes

2 answers

1k views

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

asked Sep 19, 2022 at 16:02

3 votes

3 answers

407 views

Which orbital class rocket has highest TWR at liftoff?

asked Sep 21, 2022 at 17:19

3 votes

1 answer

74 views

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

asked Nov 12, 2022 at 18:13

2 votes

1 answer

412 views

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

asked Apr 27 at 14:07

2 votes

0 answers

93 views

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

asked Feb 12, 2021 at 15:56

2 votes

2 answers

331 views

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

asked Jan 7, 2021 at 17:38

-3 votes

1 answer

279 views

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

asked May 25, 2022 at 7:52

Stack Exchange Network

30 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?

Can the space shuttle use OMS engines during landing?

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

Can a satellite orbit the ISS?

How are vacuum optimized engines tested without disintegrating them?

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?

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?

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

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?

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

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

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?

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

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

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

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

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