Year: 2012

Europe’s primary Earth-observation satellite has gone silent.

9:15 am

Europe’s primary Earth-observation satellite, Envisat, has gone silent.

Launched in 2002, the satellite is billed as the most sophisticated environmental monitor in orbit, with ten instruments providing streams of valuable data on everything from ozone, clouds and greenhouse gases to land-use trends and sea-surface temperatures — data that have figured in more than 2,000 scientific publications, ESA says. Over the years, Envisat has also offered a unique vantage point on major environmental disasters such as the December 2004 earthquake and tsunami in southeast Asia and the Deepwater Horizon oil spill in the Gulf of Mexico in 2010. Now, scientists fear that the satellite’s decade-long run has come to an abrupt end.

Problems began on 8 April when the satellite’s signal cut out as it was passing over a ground station in Sweden. ESA has been working with a team of scientists and engineers to diagnose the problem and to re-establish contact, but the outlook remains unclear.

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An up and down Sun, for real this time

2:19 pm

Though I am a bit late in covering this story (due to moving, unpacking, Passover, and an unexpected visit to the dentist), NOAA’s Space Weather Prediction Center on April 9 released its monthly update of the ongoing sunspot cycle of the Sun. The most recent graph is below the fold.

In order to understand the context of this new graph, however, it is necessary to make a correction and clarification.
» Read more

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European subsidies have put Arianespace in the black.

1:25 pm

European subsidies have put Arianespace in the black for 2011 and 2012.

The key quote however is this:

But ESA governments have made clear they are not happy having to cover losses, especially since the workhorse Ariane 5 rocket, introduced in the mid-1990s, is well past its teething stage and has conducted 47 consecutive launch successes. Its last failure was in late 2002.

Arianespace has dominated the commercial launch market in recent years, yet can’t make a profit. In this case, however, I suspect that if the company lost its subsides it would somehow find a way to finally reduce its budget.

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Assuming it gets the necessary funds, Boeing anticipates flight tests of its CST-100 reusable manned capsule in 2016.

10:11 am

More news from commercial space: Assuming it gets the necessary funds, Boeing anticipates flight tests of its CST-100 reusable manned capsule by 2016.

This story is part of the on-going lobbying effort to convince the Luddites in Congress to subsidize the new commercial space companies. To get some context, even if Congress gives NASA all of the money it has requested for this program, the annual cost will still be less than a third of the NASA-built Space Launch System, and will get us four different ways to get humans and cargo into orbit, and do it in far less time.

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Virgin Galactic has been cleared by the State Department to fly foreign tourists without obtaining an export license.

11:18 pm

Good news: Virgin Galactic has been cleared by the State Department to fly foreign tourists without obtaining an export license.

[Mark Sundahl, an associate professor of law at Cleveland State University in Ohio], said that without this determination from State, allowing a non-U.S. citizen to ride in a Virgin spacecraft — or even training a non-U.S. citizen to do so — would legally have been an export activity that required federal approval. The time it takes to obtain an export license varies, but several months is a reasonable estimate, said Sundahl, who specializes in international commerce and space law. “Under ITAR, any disclosure of controlled technical data to a foreign national, even if the disclosure takes place in the U.S., is treated as an ‘export’ of the technical data — which would require a license from the Department of State in addition to imposing other regulatory burdens on the exporter,” Sundahl said.

Freed from this regulatory requirement will make it easier for Virgin Galactic, as well as others, to sell tickets.

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Astronomers have identified two of the oldest known stars, about 12 billion years old, both only a hundred light years away.

4:19 pm

Astronomers have identified two of the oldest known stars, about 12 billion years old, both only a hundred light years away.

What is intriguing about this discovery is that these two white dwarfs had to have formed very soon after the Big Bang, long before the Milky Way galaxy existed as we know it today. How they ended up here is an interesting puzzle.

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