Gran Telescopio Canarias has a (sort of) new spectrograph. The HORS spectrograph is very high resolution, and of course GTC’s huge mirror collects a lot of light from even the most distant object. Put them together and you can measure the abundances of the chemical elements in stars, determine the masses of black holes in binary systems, and the composition of the atmospheres of exoplanets. I say it’s a…
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,…
The William Herschel Telescope is 25 years old today – first light was the 1st June 1987. For many years the Herschel was the biggest optical and infrared telescope in Europe, until Gran Telescopio Canarias opened in 2009. It’s main mirror is 4.2 m or 165? across which was huge when it opened, although that’s medium-sized these days. The telescope has so many different instruments that it’s been compared…
The Italian National Telescope (the Galileo) is getting a new scientific instrument to look for planets outside our solar system. I remember a childhood astronomy book which said that we would never know whether there are planets outside our own solar system, because they are much, much too small and much much much too far away. That’s all changed in the last few years. There’s a class of instruments called…
The 2011 Nobel Prize for Physics has been awarded to the Supernova Cosmology Project, which used distant supernova to measure the expansion of the universe, and prove that the expansion is accelerating. The Supernova Cosmology Project was a big job, and it has 32 co-authors, including M. Pilar Ruiz Lapuente from the University of Barcelona, who contributed observations from the William Herschel Telescope and the Isaac Newton Telescope, both at…