Falcon 9 is on the launchpad in Florida, being prepared for a countdown and fuel test tomorrow.
Fingers crossed: Falcon 9 is on the launchpad in Florida, being prepared for a countdown and fuel test tomorrow.
Fingers crossed: Falcon 9 is on the launchpad in Florida, being prepared for a countdown and fuel test tomorrow.
What is the International Space Station’s weakest link?
Mark Mulqueen, ISS vehicle director for Boeing Co., said keeping the station’s environmental control and life support systems, or ECLSS, functioning over the next decade will likely be engineers’ toughest challenge. “I don’t think it’s sparing or the structure to get to 2020,” Mulqueen said. “It’s probably continued refinement of how we successfuly operate our ECLSS system on-orbit. There has been a lot of effort going into understanding that.”
The article outlines a number of other areas of concern, none of which appear to be serious, for now, but could be a problem as the years pass.
An update on Stratolaunch.
JPL has issued a press release “reality check” on the impact possibilities of asteroid 2011 AG5 in 2040.
“In September 2013, we have the opportunity to make additional observations of 2011 AG5 when it comes within 91 million miles (147 million kilometers) of Earth,” said Don Yeomans, manager of NASA’s Near-Earth Object Program Office at the Jet Propulsion Laboratory in Pasadena, Calif. “It will be an opportunity to observe this space rock and further refine its orbit. Because of the extreme rarity of an impact by a near-Earth asteroid of this size, I fully expect we will be able to significantly reduce or rule out entirely any impact probability for the foreseeable future.” Even better observations will be possible in late 2015.
In other words, we really will not know anything more about these possibilities until late next year.
ATK prepares for another test firing of its five-segment solid rocket motor.
The qualification campaign, led by rocket-builder ATK, will prove the solid-fueled motor is ready to help propel the Space Launch System from Earth on two test flights in 2017 and 2021.
Though obviously funded out of the Space Launch System program (SLS), there is no guarantee at this moment that ATK’s solid rocket will be used in these test flights. NASA has said that they are considering all options for picking the launch rocket.
In a sense, we are now seeing a side benefit produced by relying on independent and competing private companies to get into space. It has placed pressure on NASA and the companies building SLS to perform. Unlike in the past, when failure to produce a new rocket or spaceship meant that NASA would simply propose a new concept and start again, now failure will mean that someone else might get the work. The result: SLS might actually get built, for less money and faster.
Though I don’t see how NASA can possibly cut the costs down to compete with these private companies, their effort might succeed enough for Congress to keep the money spigots open until the rocket gets built.
Even as I say this I remain skeptical. Considering the federal budget situation, the politics of the upcoming election, and the strong possibility that private companies will successfully provide that launch capability at a tenth the cost, I expect that sometime in the next two or three years Congress will finally balk at SLS’s cost, and eliminate it.
The first industrial railgun has begun firing tests at the Naval Surface Warfare Center in Virginia. With video.
Following a series of low-energy test shots, evaluation of the launcher is now underway and will see tests conducted at 20 megajoules to 32 megajoules – one megajoule is equivalent to a 1-ton object being thrust at 100 mph (161 km/h). Test projectiles similar to those previously fired from [the] laboratory’s launcher will be fired at speeds of 4,500 to 5,600 mph (7,242 to 9,012 km/h) using electricity instead of chemical propellants.
These speeds are a only little less than one third escape velocity. Pump this technology up a bit and you could have a cheap way to get simple supplies, such as fuel, water, oxygen, into orbit. In fact, one company is even trying to do it.
Fingers crossed: According to Orbital Sciences’ CEO, problems in launchpad construction have been the primary reason the first launch of Antares rocket/Cygnus capsule has been delayed.
The state of Orion’s construction, including a scheduled parachute drop test this Wednesday.
Fingers crossed: Orbital Sciences expects to put its Antares rocket on the launchpad for initial checkout in about five weeks.
Asking the important questions: What would happen if you shot a gun in space?