Tag: NASA

U.S./Russian deal on space cooperation past 2024?

9:23 am

Russian news sources today described a news conference in Russia where it was announced that NASA and Roscosmos have come to an agreement about extending ISS until 2024, establishing common standards for manned vehicles, and to work together on building a new space station to replace ISS after 2024.

It appears that NASA head Charles Bolden is in Russia right now as part of the start of the year-long mission on ISS, and he has negotiated some agreement with Russia. If these reports are accurate, then it means that Russia has decided to work with the U.S. rather than go it alone on their next station.

All this assumes that future presidents and Congress agree with this proposal, a very big assumption indeed.

0 comments

GAO denied access to Webb telescope workers by Northrop Grumman

11:04 pm

In a report as well as at House hearings today the GAO reported that Northrop Grumman has denied them one-on-one access to workers building the James Webb Space Telescope.

The interviews, part of a running series of GAO audits of the NASA flagship observatory, which is billions of dollars overbudget and years behind schedule, were intended to identify potential future trouble spots, according to a GAO official. But Northrop Grumman Aerospace, which along with NASA says the $9 billion project is back on track, cited concerns that the employees, 30 in all, would be intimidated by the process.

To give Northrop Grumman the benefit of the doubt, these interviews were a somewhat unusual request. Then again, if all was well why would they resist? Note too that the quote above says the cost of the telescope project is now $9 billion. That’s a billion increase since the last time I heard NASA discuss Webb. If the project was “back on track: as the agency and Northrop Grumman claim, than why has the budget suddenly increased by another billion?

3 comments

Sierra Nevada makes deal with Houston airport authority for Dream Chaser landings

10:19 am

Sierra Nevada has made an agreement with Houston’s airport authority to use Ellington Airport there to land its Dream Chaser spacecraft.

This announcement is part of the public relations push going on right now as NASA prepares to award its next round of cargo freighter contracts to two private companies. Sierra Nevada has bid to use an unmanned version of Dream Chaser to launch that cargo.

0 comments

Further SLS delays loom

9:32 pm

A report by NASA’s inspector general finds that the planned first launch of the SLS rocket in November 2018 is threatened with delay because the ground facilities at Kennedy might not be ready.

In a report released Wednesday, NASA’s Office of Inspector General warned that Ground Systems Development and Operations, or GSDO, may be hard-pressed to have Kennedy Space Center’s launch facilities ready on time. Ground systems are a critical piece of the SLS-Orion infrastructure. All three elements are tightly integrated, with ground systems requiring significant input from the rocket and capsule designs. “GSDO cannot finalize and complete its requirements without substantial input for the other two programs,” said Jim Morrison, the assistant inspector general for audits. “And NASA is still finalizing the requirements for those programs.”

Gee, I guess SLS isn’t getting enough money, as its budget is only about $3 billion per year (about six times what the commercial space program gets per year, a program that has already created two freighter systems for ISS and is now creating two manned ferry systems for ISS). Why don’t we give them more, so that even more won’t be done with the money we spend?

3 comments

How NASA will use Bigelow’s privately built ISS module

8:55 am

Not much it seems. The key paragraph is this:

Once installed, BEAM will be largely sealed off from the rest of ISS, with astronauts entering it every four to six months to retrieve data from sensors inside it. Crusan suggested NASA will consider making greater use of the module over time as the agency becomes more comfortable with its performance. That would require additional work inside the module, he said, since it has no active life support system beyond some fans.

This story illustrates NASA’s sometimes incredibly over-cautious approach to new technology. I grant that space is difficult and that it is always wise to be careful and to test thoroughly any new technology, but NASA sometimes carries this too far. For example, it took NASA more than two decades of testing before it finally approved the use of ion engines on a planetary mission (Dawn). Similarly, inflatable modules were abandoned by NASA initially, and wouldn’t even exist if a private company, Bigelow, hadn’t grabbed the technology and flown it successfully.

3 comments

Sierra Nevada introduces its cargo version of Dream Chaser

6:35 pm

The competition heats up: Sierra Nevada has unveiled a revised cargo version of Dream Chaser, competing for NASA next round of freighter contracts to ISS.

They have made a number of changes, but the most significant is the new folding wings, allowing the spacecraft to fit inside the fairings of most rocket systems. This also eliminates one of the concerns I have read about the previous design on whether its wings could have withstood exposure to the maximum atmospheric stresses experienced during launch.

2 comments

Lockheed Martin enters the competition to supply cargo for ISS

5:42 pm

The competition heats up: Lockheed Martin has joined Sierra Nevada, Orbital ATK, Boeing, and SpaceX in bidding for NASA’s next contract to ferry cargo to ISS.

Lockheed’s proposal is different in that it proposes a two spacecraft operation. The cargo would be hauled up in a very simple storage bin, where a long-term orbital tug would grab it and take it to ISS. The idea is that they would only have to build and launch the complicated thrusters, robot arms, computers, and avionics of their cargo freighter once, thereby saving money.

Two companies will be chosen. Since the first competition back in the mid-2000s, when NASA picked SpaceX and Kistler for the first cargo round, the quality of the bids has improved remarkably. Back then, NASA had to choose from a bunch of new companies, none of which had ever done this before. The big companies (Boeing, Lockheed Martin) then poo-pooed the competition, saying that it couldn’t be done as cheap as the new companies claimed. After Kistler went under and was replaced by Orbital, they and SpaceX proved the big companies were wrong.

Now the competition includes all the big players, except that those big players are no longer offering expensive systems but cut-rate efficient designs that are as cost effective as SpaceX and Orbital’s first designs.

2 comments

Magnetic field science satellites launched

9:26 am

An Atlas 5 rocket successfully launched four NASA research satellites Thursday night designed to study the behavior of the Earth and Sun’s magnetic fields at high resolution.

The quartet of observatories is being placed into an oblong orbit stretching tens of thousands of miles into the magnetosphere — nearly halfway to the moon at one point. They will fly in pyramid formation, between 6 miles and 250 miles apart, to provide 3-D views of magnetic reconnection on the smallest of scales.

Magnetic reconnection is what happens when magnetic fields like those around Earth and the sun come together, break apart, then come together again, releasing vast energy. This repeated process drives the aurora, as well as solar storms that can disrupt communications and power on Earth. Data from this two-year mission should help scientists better understand so-called space weather.

0 comments

NASA schedules commercial manned demo missions to ISS

6:45 pm

The competition heats up: NASA has now added to its ISS schedule the planned launch dates for the first demo missions of SpaceX’s and Boeing’s privately built manned capsules.

For Boeing, its CST-100 will first launch on an uncrewed test flight to the Station via the “Boe-OFT” mission in Apr, 2017 – on a 30 days mission, ending with a parachute assisted return. Should all go to place, the second mission will involve a crew – yet to be selected – on a mission designated “Boe-CFT”, launching in July, 2017, on a 14 day mission to the ISS.

The [planning] dates show SpaceX to be the most advanced in the Commercial Crew path, with their projected test flight dates currently set to win the honor of being the first Commercial Crew vehicle to arrive at the orbital outpost. That first Dragon 2 mission, designated “SpX-DM1″, has a December, 2016 launch date, ahead of a 30 day mission – most of which will be docked to the ISS – ending with a parachute assisted landing in the Pacific ocean. This would be followed by “SpX-DM2″, a crewed flight, launching in April of 2017, on a 14 day mission. This would mark the first time astronauts have launched from American soil on a US built spacecraft since Atlantis’ STS-135 mission in 2011.

American manned space exploration should begin to get very exciting in the next two years, with multiple companies now capable of putting humans in space.

0 comments

Second spacewalk in ISS reconfiguration completed

12:20 am

On Wednesday astronauts successfully completed the second spacewalk in NASA’s long term reconfiguration of ISS to accomodate two privately-built commercial manned spacecraft.

The reconfiguration will continue on Sunday with the third EVA for this crew.

The spacewalk had one minor issue that could be a cause for concern for future American spacewalks: The suit of one of the astronauts had a small water leak within it. While this problem was minor and not a threat to the astronaut, it is reminiscent of the more serious spacesuit leak that occurred in 2013 that almost drowned an Italian astronaut. Finding the cause of that leak took almost a year to track down, and though solved even now raises concerns. To have another water leak inside a suit, even a minor one, suggests that the design of the American suit has a design flaw that they are having difficulty correcting.

0 comments

Russians confirm plan to leave ISS in 2024

8:59 am

The competition heats up: Russian space managers have confirmed that they have endorsed a plan to leave ISS in 2024, when they will assemble their own space station using new modules as well as a significant number of the modules attached to ISS.

On February 24, 2015, the Scientific and Technical Council, NTS, at Roskosmos, the main planning body at the agency led by a newly appointed chairman and the former head of the agency Yuri Koptev, formally endorsed the Russian participation in the ISS program until 2024. It would be followed by the separation of Russia’s newest modules from the ISS to form the new national space station. As previously reported on this site, the initial configuration of the station would include the Multi-purpose Module, MLM, the Node Module, UM, and the Science and Power Module, NEM. Notably, the original Russian ISS component — the Zvezda Service Module, SM — was not included in the plan, thus ensuring that its propulsion capabilities would be available for deorbiting of the outpost at the end of its operational life.

Whether ISS will be functional with just the Russian Zvezda module is not clear. NASA engineers now have about a decade to figure this out and to fix it.

In general the break up of the partnership running ISS will be good for space exploration. The competition between nations will spur development and innovation. It will also free each nation from the shackles of the partnership. The Russians in particular have wanted to utilize ISS for more daring and longer expeditions to research interplanetary travel, and were stymied by NASA’s bureaucracy. Once they start doing this sort of thing on their own station NASA will feel obliged to follow.

Obviously, competition between nations carries risk. As long as there is some agreed to framework for claiming territory on other planets (something that the U.N. treaty does not allow), the nations will be able to compete peacefully. Without that framework, however, will leave room for disagreement and conflict.

It is thus essential that the space-faring nations sit down and work out this framework, and do it as soon as possible before each nation has vested interests in space that are already in conflict with each other. Above all, this new framework has got to abandon the U.N. space treaty with its rules that forbid the claiming and controlling of territory by nations in space. Those rules were never realistic, and literally guarantee that nations will eventually end up at war with each other as they fight to determine who owns what in space.

6 comments

NASA safety panel questions safety of SLS

10:47 am

NASA’s safety panel has issued a report questioning the safety of the early launches of the Space Launch System (SLS), partly due to the very low launch rate and the lack of any planned unmanned test flights for the rocket’s upper stage engine.

“The ASAP and the Agency remain concerned about risks introduced in the currently scheduled frequency of SLS/Orion launches, ” according to ASAP’s 2014 Annual Report. “The plan indicates a launch about every 2 to 4 years. This would challenge ground crew competency. The skills, procedures, and knowledge of conducting the launch, mission, and recovery are perish-able. The ASAP believes that an extended interval requires the relearning of many lessons and skills, in contrast to Apollo and Shuttle, which had a relatively steady cadence.”

No space project can accomplish anything with launch rate this slow. Not only does this increase the risk that inexperience will cause errors, the long time gaps make it difficult for the project to get anything done.

And then there is NASA’s idea that it can put humans on this rocket without any previous launch testing of the rocket’s upper stage or the capsule’s life support systems. Why should NASA’s rocket get a pass on this kind of testing when the agency is demanding that the private companies do it?

2 comments

The rockets of the world

4:36 pm

Link here.

Inspired by a book and poster from 1995, titled “Rockets of the World,” graphic artist Tyler Skrabek has provided a new and updated “clean” look for his latest work. “The ‘Rockets of the World’ poster emulates a 1960 style of drawing,” he said, “employing a consistent pallet across all rockets allowing for a distraction-free look at the size and power of the world’s greatest machines.”

A link to the poster itself can be found here. It is fascinating to compare rockets that no longer exist with those flying today.

3 comments
1 … 77 78 79 80 81 … 116