国家能源局——新闻发布
14 questions
2
votes
2
answers
186
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Will New Horizons overtake Pioneer 10 and Pioneer 11 in distance from the Sun? If, so when will this happen?
Will New Horizons ever overtake Pioneer 10 and Pioneer 11 in distance from the Sun? If, so when will this happen?
- 7,203
3
votes
0
answers
110
views
Where can I find orientation of space probes as a function of time?
Ephemerides for many space probes can be obtained from JPL Horizons using their API or their web app. But this only includes data on positions of the probes, velocities etc., but not their orientation ...
- 479
23
votes
1
answer
2k
views
Could an acid-proof, solar-powered aircraft stay aloft on the sunny side of Venus more-or-less indefinitely?
The length of Venus's solar day is 116.75 earth days ($t$ = 10,087,200 s) and it's radius, $r$, is 6051,800 m, so in theory an aircraft would only need to travel at a ground speed, $s$, of...
$$s=2\pi ...
- 9,381
7
votes
1
answer
489
views
How does NASA ensure nobody else communicates with probes? [duplicate]
We often hear about how various parts of Voyager have been turned off or on, or how course corrections have been made.
How does NASA know that nobody else on Earth can send instructions to a probe? It ...
- 173
22
votes
4
answers
5k
views
How do space probes find their way and how much fuel do they use to travel?
How do space probes find their way, for example, to explore dangerous planets like Jupiter or Saturn that have powerful magnetic fields? Do scientists control it from stations in NASA or they have a ...
- 329
5
votes
1
answer
376
views
Deep Space Optical Communications (DSOC) - from what distance could a flashlight be detected by a space-based telescope
Flight laser transmitter - for Psyche mission has Mass 29 kg (100 W).
It also requires pointing up to 3 degrees of the Sun (towards the receiver telescope).
My question is about really small probes (...
10
votes
1
answer
294
views
Is the 1970's Viking Orbiter due to contaminate Mars?
From Wiki:
The Viking program ended on May 21, 1983. To prevent an imminent
impact with Mars the orbit of Viking 1 orbiter was raised on August 7,
1980 before it was shut down 10 days later. Impact ...
- 265
1
vote
0
answers
96
views
Cubesat, smallsat, or probe 'auteurs' - do any exist?
Most cubesats, other smallsats, and small probes are designed, funded, and launched by small teams (often associated with education/research institutions) at the smallest.
By "auteur", I mean a ...
- 9,619
0
votes
0
answers
36
views
How can the download speed increase from space probes? [duplicate]
It always seems to be a genuine question that is How can we download data from far away probes in instant. When New Horizons reached Ultima Thule, it took us quite a few months to have a great picture ...
- 472
7
votes
1
answer
186
views
Do/could we have a mission ready to go for unexpected extrasolar objects?
I was just learning about 2i/Borosov, which I guess was discovered in August but I only learned of it now. And I thought, if there were any comet we'd want to send a probe to, that would be the one, ...
- 4,297
5
votes
2
answers
216
views
What will happen to space machines if Earth is destroyed?
What will happen to rovers, satellites, and probes if Earth is destroyed? What will their behaviour be like? How long will they keep functioning? Do they have any programmed actions to take in case of ...
- 153
0
votes
2
answers
257
views
Is there any record of planetary movement, relative to us?
I was discussing with some friends in addressing every possibilities of geocentric model of universe using experimental evidence rather than eyesight. But then one guy (in geocentricist-side) asked,
...
31
votes
4
answers
6k
views
Why doesn't NASA send Voyagers anymore?
It's been more than 40 years since NASA launched Voyager 1 & Voyager 2. With more advanced technology, wouldn't it now be a good time to continue sending more sophisticated Voyagers out there? ...
- 421
18
votes
2
answers
6k
views
What bitrates are currently achievable for communication with interplanetary space probes?
In communication with interplanetary space probes, it is clear that one has to take the delay caused by speed of light into account. Besides that, what are current limits for the data upload and ...
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