The Swedish Solar Tower

The Swedish Solar Tower, Roque de Los Muchachos observatory
July 1, 2014

Two of the fourteen telescopes at the Roque de los Muchachos observatory are solar telescopes — highly specialised to observe our own sun. This is the Swedish Solar Telescope, which was the first telescope built on the Roque. It’s currently the best solar telescope in the world since they added the new adaptive optics in 2005. (Adaptive optics compensate for air turbulence.) It can resolve details of the sun’s surface…

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Visiting the observatory 2014

La Palma is home to one of the three most important astronomical observatories in the world. (The other two are Hawaii and the Atacama desert in Chile.) The observatory sits at the top of the island, at the Roque de los Muchachos. It’s a fascinating place to visit, but it’s not normally open to tourists – they’re too busy doing science. However, you can sign up for a 90 minutes…

June 26, 2014
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This morning

June 20, 2014

I didn’t feel like getting up early this morning, but I had two groups of tourists at the Roque, so needs must. And the drive up was all sparkly with dew and early sunlight. I finished work at 1 pm, and went up to the viewpoint right at the top in hopes of meeting my friend Carmelo, the raven for a chat. He wasn’t there, but another raven was (I…

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Carmelo’s Back!

I hadn’t seen Carmelo the raven for about a month, and I was starting to worry. I’ve seen lots of other ravens, but Carmelo’s easy to recognise by his ankle bracelet. He’s also much the friendliest (or maybe just the cheekiest) and I’m very fond of him. So it was quite a relief when he turned up on the heliport yesterday to guzzle most of my elevenses. Many thanks to…

May 25, 2014
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Pyroclastic Flows and Dykes

The whole island of La Palma is volcanic, but it’s extremely young. The oldest rocks are only about three million years old, so there’s no dinosaur fossils here. Much of the island is basalt – a dark grey rock which tends to form hexagonal columns, like the Giant’s Causeway or Los Organos on La Gomera. Over thousands of years it weathers to a lighter grey or brownish-grey. The red rocks…

April 11, 2014
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SuperWASP, the Planet-Hunter

Superwasp open for business, Roque de Los Muchachos
April 4, 2014

Most of the telescopes at the observatory here look spectacular even from the outside. SuperWASP looks like a big garden shed. It’s the white thing at bottom left. Even when it opens up, it still doesn’t look like a professional telescope. To me, it looks more like a small missile launcher. The equipment isn’t that spectacular either. As modern telescopes go, it was built for peanuts. It has eight cameras,…

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