Questions tagged [probe]

A space probe is a scientific robotic spacecraft. It explores space and/or other planetary bodies (planets, satellites, asteroids, ..). It can flyby, orbit, enter atmosphere of, land on or submerge into its target, or approach interstellar space. Pioneer 10/11 and Voyager 1/2 are examples of space probe.

Filter by
Sorted by
Tagged with
7
votes
1answer
149 views

Conjunction analysis for deep space missions

How rigorously is conjunction analysis (finding out the chances of hitting an asteroid or another known object) conducted for missions beyond Earth orbit? Due to larger computational resources ...
13
votes
3answers
707 views

What's the public availability of data gathered by NASA probes?

The probes sent by NASA generate a lot of data for scientists to study, but how available is it to non-NASA affiliated scientists? For instance, would I (a layperson) be able to get the raw data ...
11
votes
3answers
1k views

Why is it so hard to figure out if Voyager 1 has left the solar system?

I recently noticed the comic above, and wondered what, exactly, makes it so hard to tell whether Voyager 1 has left the solar system. I can think of three reasons: Scientists can't agree on where the ...
9
votes
3answers
374 views

Alternative energy sources for inter-stellar probes?

Are there any alternative energy sources to power inter-stellar probes such as Voyager I and II developed or in development by any space agency? Plutonium (238-Pu) has a half-life of about 87,7 years,...
21
votes
1answer
5k views

Why does NASA intentionally spin space probes?

In several NASA animations of missions, I've noticed that the spacecraft is rotating while traveling in deep space. This was true of Curiosity when that video came out. Now the Juno mission ...
18
votes
2answers
2k views

Do the Voyager space probes perform time synchronization regularly?

According to JPL: http://voyager.jpl.nasa.gov/mission/weekly-reports/ Voyager 1 travels at a velocity relative to the Sun of 19.03 km/s (or 0.000063478 c, or a time difference of ~ 0.0005 seconds per ...
7
votes
2answers
250 views

Full list of asteroids that have been optically imaged as of 2013

I know we've obtained some images of asteroids from probes. Since each of those constitutes a fairly costly and public mission, I wonder if it would be possible to get a list of all such objects that ...
4
votes
2answers
3k views

On which device data gets saved on spacecrafts? [closed]

How does it? I have a turning hard disk drive in my pc, but I think it would break if I put it on a rocket. Also, what speeds do those things have?
11
votes
2answers
398 views

Are there enough stray gasses in space to justify streamlining a probe?

Space isn't empty - there are tons of things floating around in it. Seem of these things are pockets/molecule of gas - and a space probe is very likely to encounter some of these at some point in its ...

1 2 3 4 5
6