18 votes
Accepted

How similar are Soyuz and Progress?

They are essentially the same. The Progress resupply spacecraft is a direct derivative of the Soyuz, where the reentry module was replaced by a fuel tank. Hence the similar shape. Both are launched ...
17 votes
Accepted

Can we see the Russian Progress 59 spacecraft burn up on reentry?

Progress-M 27M was (on date of writing this answer, see updates below) expected to decay around Thursday, May 7, 2015 at 23:01:00 ±8 hours UTC. This predicted reentry time will get more precise as ...
  • 75.7k
15 votes
Accepted

Is this ginormous porthole a permanent feature of the ISS or "just passing through"?

It's on one of the Russian modules of the ISS, that's why it's a ginormous Russian porthole. Since the porthole is facing Earth, I'd say yes, it's also facing the same general direction as the cupola,...
  • 1,676
14 votes
Accepted

Who can now resupply the ISS?

You forgot HTV, the Japanese vehicle that has a fairly large payload. It has a planned flight Aug 15, 2015. There are several more HTV flights planned on the manifest. Progress is due to fly again ...
  • 76.9k
9 votes
Accepted

What is this huge, red, blinking light structure on Earth seen from the ISS in this video?

Update: After quite a lot of searching I believe I've found the culprits! As suggested in the comments, they appear to be a series of very large power lines around the city of Zalantun in Northwest ...
  • 9,854
7 votes

Why are Soyuz rockets painted with different colors?

Most rockets are painted white (some have black stripes). White paint reflects more heat than other colors, so this reduces propellant boiloff. The first N-1 was dark gray, later launchers were ...
  • 122k
7 votes
Accepted

How does delaying Soyuz TMA-15M crew return help with ISS schedule slip due to failed Progress M-27M resupply vehicle?

The reason for swapping the Progress and Soyuz flights is to ensure that the third stage (which is suspect at this time in the Progress failure) is working properly before launching a manned crew on ...
  • 76.9k
6 votes
Accepted

Was TORU really used on Salyut space stations

An answer of two parts, part one: From what I have seen, http://www.hightechscience.org/toru.htm is the only site to include Salyut in the list of stations with TORU installed on it. And I do believe ...
4 votes

Does the cargo type to ISS differ between different carrier spacecrafts such as Progress, Dragon, HTV, Cygnus?

Progress is built around the same basic design as the Soyuz, three modules. Propulsion is much the same. The Orbital module at the other end, docks to the station and has cargo the crew removes. ...
  • 76.9k
4 votes

How similar are Soyuz and Progress?

The two photographs you have posted show that the Soyuz middle section is longer than the corresponding re-entry module of Soyuz. You can also see the differences between the Soyuz and Progress here ...
  • 8,958
4 votes
Accepted

Where did Soyuz and Progress dock with Mir?

There has been a book on the topic I can not seem to find from my memory. However in searching I found a good resource, in the PDF at NASA called Mir Heritage. https://www.hq.nasa.gov/pao/History/SP-...
  • 76.9k
4 votes
Accepted

What are these two devices extending from each end of the Progress MS16 cargo ship's solar panels?

Peering at pictures of earlier Progress flights, these features were visible on MS-01 (62P) but not on M-28M (60P) which just has a couple of metal "pegs" instead. So it looks like an MS-...
  • 7,541
3 votes

Progress-MS01 docking incident

You can read detailed accounts of the event e.g. on RussianSpaceWeb.com and NASASpaceFlight.com. During a manual docking exercise, the spacecraft pitched while already in contact with the docking port,...
  • 2,161
3 votes

Why are Soyuz rockets painted with different colors?

I think looks are a serious matter to consider, as Andrew Thompson pointed out in the comments. Satellite operators have to decide which launch provider to use, and for many missions, there are no ...
2 votes

Why are Soyuz rockets painted with different colors?

As someone pointed out, specially on the TMA vehicle the white parts are the LOX's tank skin. That color on those tank may reduce heat absortion (from solar light), reducing LOX boil off and thus, ...
2 votes
Accepted

How is the docking hatch on the Progress/ATV opened?

After doing some further research in the NASA photo archives I discovered the hatch actuator is actually a round socket containing a square peg mounted near the collar of the docking mechanism. This ...
2 votes

Who can now resupply the ISS?

The Chinese might come to help with their Long-March launcher and Shenzhou spacecraft, which is very similar to the Soyuz spacecraft so it should be compatible. Only Russia and China launch humans to ...
  • 26.5k
1 vote

Was the Progress spacecraft named after the research facility, or vice versa?

Following the trail back in time, Progress Rocket Space Centre -> TsSKB-Progress -> Progress plant, named by the Ministry of General Machine-building in 1965. As that's before the spacecraft (...

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