All hail the Ariane 5 rocket, which doubled the Webb telescope’s lifetime

The Ariane 5 rocket, with the James Webb Space Telescope, at its launch site in French Guiana.

Enlarge / The Ariane 5 rocket, with the James Webb Space Telescope, at its launch site in French Guiana. (credit: ESA/S. Corvaja)

There were two stunningly good pieces of news about the James Webb Space Telescope this weekend. One was widely reported—that after an intricate, two-week process, the telescope completed its deployment without any difficulties. The next steps toward science operations are more conventional.

The other piece of news, less well-covered but still important, emerged during a news conference on Saturday. NASA’s Mission Systems Engineer for the Webb telescope, Mike Menzel, said the agency had completed its analysis of how much “extra” fuel remained on board the telescope. Roughly speaking, Menzel said, Webb has enough propellant on board for 20 years of life.

This is twice the conservative pre-launch estimate for Webb’s lifetime of a decade, and it largely comes down to the performance of the European Ariane 5 rocket that launched Webb on a precise trajectory on Christmas Day.

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Facebook’s data center plans rile residents in the Netherlands

Facebook’s data center plans rile residents in the Netherlands

Enlarge (credit: Robin Utrecht | Abaca Press | Alamy)

When Susan Schaap, 61, travels from her Dutch hometown of Zeewolde to the nearest city of Leylystad, the 30-minute drive takes her through vast tulip fields, interrupted only by wind turbines and sometimes sheep. But if Facebook parent company Meta’s plans are approved, her view would be replaced by the Netherlands’ largest ever data center.

Meta’s data center is “too big for a small town like Zeewolde,” says Schaap, who has become one of the project’s most vocal opponents. “There are 200 data centers in the Netherlands already,” she argues, and the move would give huge swathes of farmland to just one company, “which is not fair.”

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Remarkably, NASA has completed deployment of the Webb space telescope

A scale model of the James Webb Space Telescope.

A scale model of the James Webb Space Telescope. (credit: NASA)

For much of the world, Saturday was just another weekend day filled with all of this planet’s problems and perils. The Omicron-fueled pandemic raged around the globe. New York emerged from its first snowstorm of the season. Turmoil continued in Kazakhstan and elsewhere

But in space. In space. On Saturday, in space, there was a great triumph.

After a quarter century of effort by tens of thousands of people, more than $10 billion in taxpayer funding, and some 350 deployment mechanisms that had to go just so, the James Webb Space Telescope fully unfurled its wings. The massive spacecraft completed its final deployments and, by God, the process went smoothly.

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