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uhoh
  • Member for 6 years, 11 months
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  • Taipei, Earth

493 Offered bounties for 59,700 reputation

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?

1 vote
0 answers
90 views
+100

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

9 votes
0 answers
234 views
+100

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

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?

1 vote
1 answer
174 views
+100

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

4 votes
2 answers
304 views
+100

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

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)

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?

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?

9 votes
0 answers
188 views
+200

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

5 votes
1 answer
152 views
+100

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

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?

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?

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?

3 votes
0 answers
93 views
+100

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

3 votes
1 answer
161 views
+100

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

3 votes
0 answers
55 views
+100

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

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?

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?

8 votes
2 answers
475 views
+100

Has a rocket from a torpedo tube ever reached space?

5 votes
1 answer
257 views
+100

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

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?

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?

4 votes
0 answers
375 views
+100

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

3 votes
0 answers
103 views
+200

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

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?

2 votes
1 answer
154 views
+100

Why a polar orbit for TWINKLE?

6 votes
0 answers
206 views
+100

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

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?

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?

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