User uhoh

4 votes

0 answers

118 views

+100

Did they figure out what caused the "high-pitched scratching noise" that Perseverance recorded with its microphone? Was it static discharge?

asked Jun 3, 2021 at 5:13

1 vote

0 answers

90 views

+100

How does the wind behave throughout the day in Jezero Crater? (worried about Ingenuity)

asked Sep 18, 2021 at 11:09

9 votes

0 answers

234 views

+100

Has there ever been a deliberate "Find A Satellite" challenge? Actually, could there be?

asked May 18, 2021 at 1:09

12 votes

2 answers

319 views

+100

Is lunar exploration going to need a whole heck of a lot of RTGs? If so, have they started firing up the RTG-making reactors yet?

asked Nov 18, 2021 at 4:15

1 vote

1 answer

174 views

+100

Why not add tracking features to upper stages? Has something like this ever been proposed?

asked Feb 23 at 18:31

4 votes

2 answers

304 views

+100

When and what was the first successful photograph of an orbital spacecraft from Earth taken?

asked Jun 24, 2020 at 1:03

3 votes

0 answers

347 views

+200

Did any of Voyagers' receivers' front ends take advantage of the "cold of space" to lower noise? (communications or radio/plasma science receivers)

asked Oct 10, 2018 at 2:21

7 votes

1 answer

189 views

+200

Has Same Beam Interference (SBI) been used or at least tested at Mars? Are there plans to use it in the next few years?

asked Sep 11, 2020 at 3:48

5 votes

1 answer

252 views

+100

Has Hubble ever focused on something close enough that it had to move away from being focused at infinity?

asked Mar 20, 2021 at 9:43

9 votes

0 answers

188 views

+200

Was the Doppler shift of InSight's "tone" measured and plotted somewhere?

asked Nov 27, 2018 at 3:21

5 votes

1 answer

152 views

+100

When NASA spacecraft arrive at Mars, is Mars always always above the horizon in the US?

asked Feb 18, 2021 at 22:11

5 votes

2 answers

335 views

+100

Can JWST come in for a pit stop? Is the fuel supply on JWST adequate for a transfer to an Earth Moon libration point to allow repairs?

asked May 7 at 16:43

6 votes

2 answers

332 views

+100

When jettisoning heavy objects from the ISS e.g. 2.9 tons of batteries+, how much angular impulse does the station get? Corrective actions necessary?

asked May 8, 2021 at 2:53

2 votes

0 answers

94 views

+100

How is the maximum data rate of the Psyche mission's Deep Space Optical Communications (DSOC) system expected to scale with distance?

asked Mar 8 at 2:22

3 votes

0 answers

93 views

+100

Understanding shape of DSN's 'kinky uplink protocol' keeping frequency in coherent transponder's optimum bandpass?

asked Jan 10, 2019 at 3:49

3 votes

1 answer

161 views

+100

What does Cees Bassa's Doppler plot of Chandrayaan 2 show?

asked Sep 9, 2019 at 5:33

3 votes

0 answers

55 views

+100

What is actually happening in this full mission rehearsal of CAPSTONE's propulsion hardware?

asked Aug 26, 2021 at 0:43

1 vote

0 answers

121 views

+100

How will NASA's software for autonomous navigation in cis-lunar space be tested; what information is processed, what outputs evaluated?

asked Mar 9, 2020 at 3:06

3 votes

1 answer

154 views

+100

How many times will the Photon fire its Curie in order to "reach the right spot" to deploy CAPSTONE towards the Moon?

asked Sep 5, 2020 at 7:54

8 votes

2 answers

475 views

+100

Has a rocket from a torpedo tube ever reached space?

asked Jan 18, 2021 at 3:26

5 votes

1 answer

257 views

+100

Could this three-thruster spherical spacecraft de-tumble itself with zero final velocity?

asked Jun 8, 2021 at 3:35

4 votes

0 answers

103 views

+100

Just how locked is Titan? Does it exhibit libration due to eccentricity? Have residual oscillations not yet damped out been detected or ruled out?

asked Dec 31, 2021 at 18:11

8 votes

0 answers

205 views

+400

Roughly, how much of our Moon's apparent libration amplitude seen from the Geocenter is due to different effects?

asked Jul 15, 2020 at 2:38

4 votes

0 answers

375 views

+100

What were Hubble's jerk and jounce limits? Did JWST have the same?

asked Apr 30, 2018 at 13:27

3 votes

0 answers

103 views

+200

Did Chang'e-3 and/or Yutu report getting hit by the Earth's magnetotail?

asked Mar 16, 2021 at 11:22

2 votes

0 answers

52 views

+100

What is MAHLI's theoretical or expected best optical resolution? How was it defined? Was it verified on Mars?

asked Sep 25, 2021 at 7:03

2 votes

1 answer

154 views

+100

Why a polar orbit for TWINKLE?

asked Jun 13, 2019 at 10:53

6 votes

0 answers

206 views

+100

Why does this sounding rocket have black sooty exhaust with mach-diamond-like oscillations? Is this unusual?

asked Jan 29 at 4:48

8 votes

1 answer

560 views

+100

Delta-v obtained from Titan by the Cassini spacecraft; just how much of a "gas tank" was it?

asked Aug 25, 2018 at 13:57

9 votes

1 answer

254 views

+100

How do they know that the Dragonfly helicopter won't get quickly coated in tholin muck? Any desliming technology for camera lenses or propellors?

asked Jun 27, 2021 at 6:34

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Did they figure out what caused the "high-pitched scratching noise" that Perseverance recorded with its microphone? Was it static discharge?

How does the wind behave throughout the day in Jezero Crater? (worried about Ingenuity)

Has there ever been a deliberate "Find A Satellite" challenge? Actually, could there be?

Is lunar exploration going to need a whole heck of a lot of RTGs? If so, have they started firing up the RTG-making reactors yet?

Why not add tracking features to upper stages? Has something like this ever been proposed?

When and what was the first successful photograph of an orbital spacecraft from Earth taken?

Did any of Voyagers' receivers' front ends take advantage of the "cold of space" to lower noise? (communications or radio/plasma science receivers)

Has Same Beam Interference (SBI) been used or at least tested at Mars? Are there plans to use it in the next few years?

Has Hubble ever focused on something close enough that it had to move away from being focused at infinity?

Was the Doppler shift of InSight's "tone" measured and plotted somewhere?

When NASA spacecraft arrive at Mars, is Mars always always above the horizon in the US?

Can JWST come in for a pit stop? Is the fuel supply on JWST adequate for a transfer to an Earth Moon libration point to allow repairs?

When jettisoning heavy objects from the ISS e.g. 2.9 tons of batteries+, how much angular impulse does the station get? Corrective actions necessary?

How is the maximum data rate of the Psyche mission's Deep Space Optical Communications (DSOC) system expected to scale with distance?

Understanding shape of DSN's 'kinky uplink protocol' keeping frequency in coherent transponder's optimum bandpass?

What does Cees Bassa's Doppler plot of Chandrayaan 2 show?

What is actually happening in this full mission rehearsal of CAPSTONE's propulsion hardware?

How will NASA's software for autonomous navigation in cis-lunar space be tested; what information is processed, what outputs evaluated?

How many times will the Photon fire its Curie in order to "reach the right spot" to deploy CAPSTONE towards the Moon?

Has a rocket from a torpedo tube ever reached space?

Could this three-thruster spherical spacecraft de-tumble itself with zero final velocity?

Just how locked is Titan? Does it exhibit libration due to eccentricity? Have residual oscillations not yet damped out been detected or ruled out?

Roughly, how much of our Moon's apparent libration amplitude seen from the Geocenter is due to different effects?

What were Hubble's jerk and jounce limits? Did JWST have the same?

Did Chang'e-3 and/or Yutu report getting hit by the Earth's magnetotail?

What is MAHLI's theoretical or expected best optical resolution? How was it defined? Was it verified on Mars?

Why a polar orbit for TWINKLE?

Why does this sounding rocket have black sooty exhaust with mach-diamond-like oscillations? Is this unusual?

Delta-v obtained from Titan by the Cassini spacecraft; just how much of a "gas tank" was it?

How do they know that the Dragonfly helicopter won't get quickly coated in tholin muck? Any desliming technology for camera lenses or propellors?