Tag: ISS

The astronauts who returned to Earth from ISS on September 10 were flying blind.

5:30 pm

Another Russian space glitch: The astronauts who returned to Earth from ISS on September 10 were flying blind.

The altitude sensors apparently failed soon after undocking. Since the Soyuz craft is not piloted but returns to Earth automatically, this failure was not crucial. That it happened, however, sends another worrisome signal about declining Russian quality control standards. If this system failed, why couldn’t another more crucial one fail as well?

3 comments

NASA has put Orbital Sciences on notice that, assuming its demo cargo mission to ISS in two weeks is a success, the company might have to do it again as soon as December.

11:06 pm

The competition heats up: NASA has put Orbital Sciences on notice that, assuming its demo cargo mission to ISS in two weeks is a success, the company might have to do it again as soon as December.

SpaceX is supposed to fly its next cargo mission first, but NASA thinks that flight will be delayed because of development issues with the upgraded Falcon 9 rocket.

2 comments

Despite the astronauts’ success on ISS in recreating the spacesuit water leak, NASA engineers still do not know its cause.

3:54 pm

Despite the astronauts’ success on ISS in recreating the spacesuit water leak, NASA engineers still do not know its cause.

What is unstated about this problem is that, because we used to have a big space shuttle with lots of cargo capacity, the American spacesuit was designed to be maintained and repaired on the ground. In the past the next space shuttle flight would have brought a new spacesuit to the station while taking this defective suit back to Earth for analysis and repair. Now that we don’t have a big space shuttle, our complex spacesuits are far more difficult to troubleshoot.

The solution? First, keep it simple. The Russians, limited by the capacity of their Progress and Soyuz capsules, made their Orlan spacesuit very simple and easy to use.

Second, get as many redundant replacements of the shuttle operating as soon as possible.

3 comments

Astronauts on ISS have successfully recreated the water leak in the defective spacesuit that almost drowned an astronaut last month.

8:37 am

Astronauts on ISS have successfully recreated the water leak in the defective spacesuit that almost drowned an astronaut last month.

They now have a very good idea of the components that caused the failure, and will be able to replace these with new parts. The next step will be to test the suit under the same conditions with the new parts.

Leave a comment

Formation flying in space, without propellants.

8:52 am

Formation flying in space, without propellants.

Electromagnetic formation flight (EMFF) gets around this propellant problem by turning the satellites in a formation into electromagnets. By using a combination of magnets and reaction wheels, spacecraft in formation can move and change their attitude and even spin without propellant. Satellites can change their polarity to attract or repel one another, turn, or shift their relative positions in any manner that doesn’t require changing the center of gravity for the entire formation.

A prototype is going to be tested inside ISS in the near future.

2 comments

The Russians have begun a six-hour spacewalk today on ISS to prepare the station for the arrival of a new Russian module.

9:30 am

The Russians have begun a six-hour spacewalk today on ISS to prepare the station for the arrival of a new Russian module.

The article also outlines the continuing investigation into the American spacesuit problem from the last American spacewalk, where an astronaut’s suit began to fill with water from an unknown source. It appears they have pinpointed the most likely cause of the leak, but appear to be having problems recreating the failure.

Update: The Russian spacewalk is over, all tasks completed.

Leave a comment

Assuming the first demo berthing of Orbital Sciences’ Cygnus capsule to ISS goes well in September, NASA has now scheduled the subsequent cargo missions of Cygnus and Dragon for December and January respectively.

9:22 am

Assuming the first demo berthing of Orbital Sciences’ Cygnus capsule to ISS goes well in September, NASA has now scheduled the subsequent cargo missions of Cygnus and Dragon for December and January respectively.

The second link above also provides some interesting details about the cargo that Dragon will carry in January.

Leave a comment

On Friday an astronaut on ISS controlled and steered a rover on Earth.

8:33 am

On Friday an astronaut on ISS controlled and steered a rover on Earth.

While zipping around Earth several hundred miles above the planet’s surface, European Space Agency astronaut Luca Parmitano drove a 220-pound (100 kilograms) rover across a moon-mimicking landscape here at NASA’s Ames Research Center, even ordering the robot to deploy a simulated film-based radio telescope antenna.

4 comments

Bigelow announces prices for visiting or renting their space station modules.

11:53 am

The competition heats up: Bigelow Aerospace announces prices for visiting or renting their space station modules.

For countries, companies, or even visiting individuals that wish to utilize SpaceX’s Falcon 9 rocket and Dragon capsule, Bigelow Aerospace will be able to transport an astronaut to the Alpha Station for only $26.25 million. Using Boeing’s CST-100 capsule and the Atlas V rocket, astronauts can be launched to the Alpha Station for $36.75 million per seat. In stark contrast to the short stays of a week or so aboard the ISS that we have seen wealthy individuals pay as much as $40 million for, astronauts visiting the Bigelow station will enjoy 10 – 60 days in orbit. During this time, visiting astronauts will be granted access to the Alpha Station’s shared research facilities. Examples of available equipment include a centrifuge, glove-box, microscope, furnace, and freezer. Also, potential clients should note that as opposed to the ISS, where astronauts dedicate the lion’s share of their time to supporting station operations and maintenance, astronauts aboard the Alpha Station will be able to focus exclusively on their own experiments and activities, ensuring that both nations and companies can gain full value from their investment in a human spaceflight program. [emphasis in original]

The release also describes price plans whereby the customer can rent part of a module for a period of time, as well as the prices for the naming rights to a module.

I hadn’t heard about it elsewhere and do not remember if this is old news or not. The announcement on the website is undated. Nonetheless, as the release notes, these prices undercut the fees charged by the Russians and provide far more opportunities for the customer.

2 comments

NASA is trying get some spare spacesuit parts onto a Russian Progress freighter, scheduled to launch Saturday, in its effort to fix its American spacesuits on ISS.

7:14 pm

NASA is trying get some spare spacesuit parts onto a Russian Progress freighter, scheduled to launch Saturday, in its effort to fix its American spacesuits on ISS.

It must be emphasized that NASA still doesn’t know exactly what caused the water leak into that spacesuit during a spacewalk last week.

Leave a comment

The Proton rocket is now grounded pending an investigation into today’s launch failure.

5:52 pm

The Proton rocket is now grounded pending an investigation into today’s launch failure.

This is no surprise. What is more significant is that the crash today will likely delay all launches out of Baikonur for at least three months.

[C]ontamination will likely suspend activities at Baikonur Cosmodrome for two or three months, Ria Novosti reported, citing an unnamed source within the Russian space industry. The launch of a robotic Progress cargo ship to the International Space Station from Baikonur, currently scheduled for July 27, will probably be delayed as a result, according to this source. The next manned launch from Baikonur is Soyuz 36, which is slated to blast off on Sept. 25 to take three new crewmembers to the International Space Station.

One comment

Two Russian astronauts completed a six-hour-plus spacewalk today, preparing the station for Russia’s science module.

9:48 pm

Two Russian astronauts completed a six-hour-plus spacewalk today, preparing the station for Russia’s science module.

This science module is many years late, delayed due to Russia’s financial problems after the fall of the Soviet Union. That the Russians are finally about to launch it is another indication, like their recent Proton rocket launch successes, that there space program might be experiencing a resurgence.

Leave a comment

A 3D printer intended for installation on ISS in 2014 has successfully proven it can work in weightlessness.

9:12 pm

A 3D printer intended for installation on ISS in 2014 has successfully proven it can work in weightlessness.

Three prototype versions of space manufacturing startup Made in Space’s 3D printer showed their stuff during four airplane flights that achieved brief periods of microgravity via parabolic maneuvers, company officials announced today (June 19).

Then there’s this:

“The 3D printer we’re developing for the ISS is all about enabling astronauts today to be less dependent on Earth,” Noah Paul-Gin, Made in Space’s microgravity experiment lead, said in a statement. “The version that will arrive on the ISS next year has the capability of building an estimated 30 percent of the spare parts on the station, as well as various objects such as specialty tools and experiment upgrades.” [emphasis mine]

If this claim is true, this printer will do a lot to make interplanetary space travel far more likely. It will mean that travelers far from home will be able to manufacture the spare parts they need, on demand, should something break. This will save a lot of weight, compared to carrying pre-made spare parts.

8 comments

Russian concerns about a build-up of mold inside the European ATV, now docked to ISS, has caused a delay in the opening of its hatch.

9:35 am

Russian concerns about a build-up of mold inside the European ATV, now docked to ISS, has caused a delay in the opening of its hatch.

The Spaceflight101 portal said the delay was due to possible “mold and bacteria contamination on three cargo bags that are inside the spacecraft” and that a decision is yet to be made on whether the crew should use anti-mold kits to clean ATV-4 cargo before taking it inside the ISS.

The Russians had a lot of problems with mold in their early Salyut space stations, and understand the unpleasant consequences should mold spread into the station. Thus, I am not surprised if they are taking this issue seriously.

One comment
1 … 33 34 35 36 37 … 47