Tag: engineering

Arianespace has signed a contract to build 18 more Ariane 5 rockets.

9:13 am

The competition heats up: Arianespace has signed a contract to build 18 more Ariane 5 rockets.

This order takes the number of Ariane 5 launchers in production for Arianespace to 38, and guarantees the continued provision of launch services for the European operator’s customers at the Guiana Space Centre through to the end of the decade.

Without doubt Arianespace is now in a solid position through the end of the decade. What will happen to them, however, when Falcon 9 and other cheaper rockets begin to fly regularly will be the real story. They have not yet found a way to cut their costs.

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Voyager 1’s future.

9:08 am

Voyager 1’s future.

Voyager 1 has enough nuclear fuel to keep doing science through to 2025, and then it will be dead, adrift. On its current trajectory, the probe should eventually end up within 1.5 light years of a star in Camelopardalis, a northern constellation that looks like a cross between a giraffe and a camel. No one knows if there are any planets around that star, nor if aliens will be in residence by the time the probe arrives. “But if they are there, maybe they will capture Voyager 1,” says mission scientist Tom Krimigis of Johns Hopkins University in Baltimore, Maryland.

In addition to the above silliness, the article gives a good summary of the real data that Voyager 1 is sending back about interstellar space.

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An unmanned spacecraft designed to get rid of space junk is set to launch in 2018, and use a new European built reusable launch system.

8:52 am

The competition heats up: An unmanned spacecraft designed to get rid of space junk is set to launch in 2018, and use a new European built reusable launch system.

Both components of this story are significant. First, a company has gotten the necessary financing to build the spacecraft, proving that there is profit to be made in the removal of space junk. Second, the launch system is simple and reusable, and will lower the cost of getting small payloads into orbit significantly. And it appears it is being built.

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India space officials have decided to completely replace the second stage of the GSLV rocket that leaked during the rocket’s scrubbed launch last month.

8:36 am

India’s space agency has decided to completely replace the second stage of the GSLV rocket that leaked during the rocket’s scrubbed launch last month.

“Although the exact reasons for the leakage in the second stage of the engine, which prevented the launch on August 19, are being probed by the team headed by K Narayanan, it has been decided that a new liquid second stage (GS-2) will be assembled to replace the leaked stage,” said the official. He added that the process of assembling has begun, and that besides the GS-2, all the four liquid strap-on stages are being replaced with new ones.

That leak must have been quite significant for them to make this decision.

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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?

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When will SpaceX launch the upgraded Falcon 9? We have competing news stories:

9:57 am

When will SpaceX launch the upgraded Falcon 9? We have competing news stories:

  • The Canadian Space Agency sent out a press release today saying Cassiope will launch on September 15 on its Falcon 9 rocket.
  • Elon Musk sent out a twitter report of yesterday’s static fire test, noting there were anomalies and that the launch date is still to be determined.

This is very puzzling. That the Canadian release was sent out today suggests that they have information we don’t have about the static fire test and thus knew they could announce the launch date. That Musk is more circumspect however suggests that the information the Canadians have is not correct.

Update: Stephen Clark at Spaceflight Now has more information. It appears the launch will not happen on Sunday, as SpaceX plans a second launchpad static test tomorrow to iron out the unexplained “anomalies” in yesterday’s static test.

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SpaceX successfully completed a static test of the 9 first stage engines of its upgraded Falcon 9 rocket today.

6:50 pm

SpaceX successfully completed a static test of the 9 first stage engines of its upgraded Falcon 9 rocket today.

SpaceX’s upgraded Falcon 9 rocket briefly fired nine Merlin 1D engines on the launch pad Thursday, but engineers will review data from the prelaunch static fire test before confirming the mission’s targeted Sunday launch from Vandenberg Air Force Base in California, sources familiar with SpaceX’s launch preparations said.

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NASA has announced a press conference for later today about the Voyager spacecraft.

9:26 am

NASA has announced a press conference for later today about the Voyager spacecraft.

The rumors are that all the scientists involved with this data from this spacecraft now finally agree that Voyager has left the solar system. More to come.

The rumors were true: NASA has confirmed that Voyager 1 is out of the solar system and in interstellar space, and has been since last summer.

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Today’s static fire test and launch rehearsal of SpaceX’s Falcon 9 rocket was scrubbed.

12:00 am

Wednesday’s static fire test and launch rehearsal of SpaceX’s Falcon 9R rocket was scrubbed.

I hear rumors that there was a fuel leak, but this is not confirmed. Regardless, this scrub could cause another delay of Sunday’s planned launch of the upgraded Falcon 9R with its first commercial payload, as the company wants to do this test prior to launch.

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