MIRI on a Jetplane

Last week, I said a little goodbye to MIRI. In a UK Space Agency-sponsored swanky bash in central London, the MIRI team got the official confirmation that the instrument is cleared for shipping to our NASA colleagues at the Goddard Space Flight Center in Maryland, where it will be prepared for integration with the spacecraft that will carry the James Webb Space Telescope into space.

It was a day of looking back, ceremony and celebration, rather than schedules and problem-solving, for the benefit of the various officials from space and funding agencies and the media. In the afternoon, we heard a speech from the UK Science Minister David Willetts, and I particularly enjoyed the talk by Mark McCaughrean of ESA, about making dreams come true. Yes, there was some cheesiness, but you know, once in a while you have to chuck out the hard-nosed cynicism and make time for that.

There was some nice media coverage, particularly from the BBC. Here’s an interview with Eric Smith, the deputy programme director for JWST at NASA, Jonathan Amos visiting MIRI and RAL, and another longer article + video from Amos. Will Gater also vsited RAL and produced this nice video for the Sky at Night Magazine.

People always ask me whether this is now the end for the European involvement in MIRI, and of course it isn’t. There’s a lot of work still to be done once MIRI is in the US – it will need to be integrated with the rest of the spacecraft, which means more testing up ahead. There’s software to be developed and calibration products to be delivered. As most MIRI expertise is currently in Europe, the European team has an important, if supporting, role to play in all that. It also means that we’re not quite done yet with MIRI meetings, and I’m looking forward to more time with the team I’ve so enjoyed working with these last 5 years.

Unusually for me, I brought my own camera and took some pictures of the proceedings for my own memory box. I thought I’d share a few of the ones that came out nicely.

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MIRI is ready to go

Image: STFC

It’s been a busy few months for MIRI, the mid-infrared instrument for the James Webb Space Telescope, since we had our Acceptance Review at the start of the year. The team’s engineers have performed some final tests on the instruments to cross a few final t’s, dot the last i’s, both in Europe on the actual flight hardware and on spare parts over in the US.

My fellow test teamers and I are currently working on the calibration procedures for the instruments, or how to get the best scientific information out of the photons hitting the detectors. That should keep us busy for a few more months.

But the big news, fresh in my inbox, is that MIRI has now been officially cleared for shipping and delivery to NASA. This means that the panel charged with examining all our design documentation and test results are satisfied that MIRI is ready to be integrated with the rest of the spacecraft.

This is super good news for the whole team.

Of course, the further integration of MIRI won’t happen in a day either, and there’s still a long road ahead for the telescope, the instruments and the whole spacecraft before JWST will be ready for launch.

Next Wednesday we’re having a ‘do in London to present our work and our test results from MIRI to an audience of Big Wigs and Important People. A press conference has been planned so expect some MIRI-related items in the news next week as well (I hope). While I have got a little bit fond of Didcot and the Rutherford Labs after so many trips there, it does add a sense of occasion to have this event in a swanky venue in London.

I’ll be presenting the test results from the instrument’s low resolution spectrograph to round off the performance presentations – saving the best for last, obviously. (I kid, I kid.) See you there!

 

Credit where it’s due?

The Andromeda Galaxy in optical, IR and X-ray

Earlier this week, this amazing image of M31, the Andromeda galaxy, was splashed all over the media and the inernet. The image is a composite of optical, infrared and X-ray data, with the infrared image coming from the Herschel space telescope, launched in 2009. The picture has been featured and discussed in the media all week – rightly so, as it’s stunning. With Herschel, we can finally showcase far-infrared and submillimetre images that are just as beautiful as those produced at shorter wavelengths with Hubble, or VLT on the ground. Moreover, observing galaxies at these wavelengths at the level of detail enabled by Herschel is opening some big new windows onto the physics that governs the Universe, from right on our doorstep to billions of lightyears away. What I’m saying, if that wasn’t yet clear, is that this telescope is something to be very proud of.

The Daily Mail, however, decided to take a different approach – one that both misses the point, and is plain wrong. It sets the Herschel image side by side with an optical image of Andromeda, taken by British amateur astronomer Steve Loughran, and asks:

“One of these pictures was taken in a British back garden by an amateur using kit worth £10,000 – the other cost Nasa millions. But can you tell the difference?”

Gliese 581 g: The Goldilocks that isn’t?

ResearchBlogging.orgThe discovery of planet Gliese 581 g, an exoplanet just 3 times the mass of our Earth  and located in its host star’s Habitable Zone, was one of the biggest science headlines of the year. The news broke, typically, somewhere between my observing proposal deadline and box number 15: “all the crap that didn’t fit into boxes 1-14″, and by the time I’d read the story the internets was awash with all the details already.

As it turns out, I’m glad I haven’t written about it yet, as the story just got a little bit more interesting. With the headline still hot on the media’s most-read lists, astronomers from the Geneva exoplanet group have this week cast doubt on the discovery. Using data of GJ581 from the HARPS spectrograph at  the ESO 3.6-m telescope at La Silla, the instrument par excellence for planet hunting by radial velocities, they haven’t been able to confirm or reject the Californians’ findings, obtained with the HIRES spectrograph on Keck.

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Science, statistics and society

What are the odds?

On Tuesday I attended Science Cafe in Leiden, a monthly discussion evening on all matters scientific and their role in society. The theme was the way chance, likelihood and statistics are (mis-)used and represented by the media, politicans and the law. Leading the discussion was Arnout Jaspers, columnist for Dutch science magazine Natuurwetenschap & Techniek, with special guest Richard Gill, Professor in Mathematical Statistics at Leiden University. Gill and Jaspers illustrated the potentially far-reaching consequences of bad statistics with two recent stories to hit the headlines: the reopening of the Lucia de Berk case, and the drug suspension of Germany’s most successful winter Olympian, Claudia Pechstein.

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