The William Herschel Telescope was for many years the biggest and best optical telescope in Europe (until GranTeCan opened in 2009). The main mirror is 4.2 m across (165″, or 13′ 9″) which astronomers call “a good light bucket”. It’s rather old as world-class telescopes go, since it opened in 1987, but it still produced excellent science. In fact data from the WHT has been used for about 1,500 scientific…
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 one of the first telescopes 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…
STARMUS is a unique scientific, artistic and musical event taking place mostly in Tenerife this week, with a truly stellar line-up of speakers and performers. I wanted to go, but I couldn’t afford the time or the money. I say “mostly in Tenerife” because on Thursday Jack Szostak, Brian May, Richard Dawkins, Kip Thorne, George Smoot, Jill Tarter, Alexei Leonov and Neil Armstrong are coming to the Roque de los…
Today I showed two Buddhist monks (plus three of their friends) around the biggest telescope in the world. The senior one is the professor of Buddhist Philosophy at the University of Varanasi, in India. Unfortunately I can’t remember his name since it was so exotic to me. I did a bit of a double take when I saw that the university professor was wearing Tibetan robes, like the Dalai Lama….
The Canary Islands are known as the land of eternal spring, but that’s not quite true at 2,396 metres (7,861 ft). Down at sea-level, it’s been raining. Up on the mountain, it’s been snowing. Yesterday the road was only suitable for 4-wheel-drive vehicles, but I gather the road is open again. If you’re on La Palma, this is your chance to make a snowman. But drive carefully, and once you…
Common Ravens live all over Europe, Asia and North America, but we have a different sub-species here. Some biologists group our raven in with the North African sub-species (Corvus corax tingitanus) and others think the Canaries have their own sub-species (Corvus corax canariensis). Like other members of the rook-and-crow family, they’ll eat whatever’s available: carrion, insects, cereal grains, berries, fruit, small animals, and food waste. And they’re pretty intelligent about…