Linked Questions

11
votes
6answers
3k views

Has any space probe changed course (in a large way) over time?

I encountered the following text from here: Generally, a spacecraft is launched with huge rockets into a certain trajectory, or path, and it continues on that that path. Often the smaller rockets ...
22
votes
2answers
2k views

Going from LEO to lunar using only low-thrust ion propulsion - can it be done?

@SF.'s question What are the parameters of the new Iodine electrical rocket engine developed by RSC Energia? links to the short RT article 'Ten times cheaper': Russian space company testing iodine ...
6
votes
2answers
1k views

Did the NASA PhoneSat actually try to use the GPS from the phone itself?

I was reading this article about NASA's PhoneSat Flight Demonstrations and came across this sentence. "To achieve this, NASA's PhoneSat design makes extensive use of commercial-off-the-shelf ...
10
votes
1answer
823 views

What ever happened to SpinSat - did it work?

I can find several descriptions of what the SpinSat satellite was supposed to do. I can find some nice images of it being deployed from the ISS also. But I haven't been so successful in understanding ...
5
votes
1answer
555 views

How many Space Shuttle payloads ended up beyond Earth orbit?

Before I'd read Why did the Ulysses probe reach Jupiter much faster than Galileo? and this answer to What's the largest rocket that was carried to space inside a Space Shuttle? I never really ...
4
votes
2answers
631 views

Was this large pieces of “space junk” just released from the ISS in the “nadir and retrograde” direction?

According to Space.com's 02-Feb-2018 article Cosmonauts Break Russian Spacewalk Record During Space Station Antenna Repair: The cosmonauts spent the day replacing an electronics box for a high-gain ...
6
votes
1answer
188 views

Why did the Ulysses probe reach Jupiter much faster than Galileo?

Both Ulysses and Galileo were launched by the Space Shuttle and the Inertial Upper Stage (IUS). Yet Ulysses only took 16 months to reach Jupiter, while Galileo took 6 years. Is it because Galileo ...
2
votes
1answer
182 views

Are the cubesats deployed from the ISS always directed “nadir and retrograde”?

@Tristan's answer to What are the orbital mechanical consideration behind hand-launched nanosatellites from the ISS? includes: If you launch nadir and retrograde, you will put the object into a ...
2
votes
1answer
386 views

MARS-CAT; What is a Cubesat Ambipolar Thruster and how does it work?

Trying to understand ion thrusters a little, I started looking at https://en.wikipedia.org/wiki/Ion_thruster#Propellants where I saw: The CubeSat Ambipolar Thruster (CAT) used on the Mars Array of ...
4
votes
1answer
230 views

What's the largest rocket that was carried to space inside a Space Shuttle?

Why did the Ulysses probe reach Jupiter much faster than Galileo? got me wondering about the largest rocket that was carried to space inside a Space Shuttle. Largest in terms of some performance ...
3
votes
1answer
217 views

What are the advantages of solid iodine propellant and how is it used for ion propulsion?

I was reading about different sources of propellant for ion thrusters, Xenon being the most common. However, in more recent articles I've found more and more mentions of Solid Iodine being used as ion ...