This is GranTeCan (Gran Telescopio Canario / Big Canarian Telescope) on the Roque de los Muchachos observatory in La Palma. It will be inaugurated on July 24th. The king and queen of Spain are coming, and there are rumours that Dr. Brian May is coming too. The telescope and its first two instruments cost €105 million: 90% of this came from Spain, 5% from Mexico, and 5% from the University…
GranTeCan (Grand Telescopio Canario / Big Canarian Telescope) at sunset. Some six weeks ago I got permission to take sunset photos at the observatory. But one way and another, there was always something that stopped me going: I was ill, or my husband got home late, or the the air was full of Sahara dust and the sunset would be lousy. Yesterday I finally got up to the Roque at…
Twinkling stars are pretty, but astronomers would much rather they didn’t. The twinkle is caused by movement in the air above you (the same as a mirage on very hot days) and it stops the astronomers getting a clear view. The Hubble Telescope gets such wonderfully clear images because it’s out of the atmosphere altogether. But there’s only one Hubble, and it cost a fortune. So they build ground-based…