Inside the HARPS-N spectrograph

The big defraction grating on its zerodur support, HARPS-N spectrograph, Galileo telescope
May 21, 2012

  Francesco Pepe invited me to see inside the HARPS spectrograph. I was very lucky, because the enclosure was closed for the inauguration, and closed again (probably for years) soon after I took these photos. Of course I had to wear special over-clothes to prevent dust getting into the instrument. The top photo shows the grating, which splits the starlight into a rainbow, and the bottom one shows the collimator,…

Read More >>

Inauguration of the Liverpool Annex

The Liverpool Telescope, open at sunset, Roque de Los Muchachos observatory
May 3, 2012

  Today they inaugurated the annex building to the Liverpool telescope. The Liverpool is the joint largest robotic telescope in the world, with a 2 m mirror. Since there’s nobody at the telescope at night, it was built with very little in the way of workshops. But the new building contains a workshop to assemble and test new instruments, and a control room, to help humans commission them. Of course…

Read More >>

A Special Spectrograph.

The Telescopio Nazionale Galileo, late afternoon, Roque de Los Muchachos, La Palma
April 16, 2012

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…

Read More >>

La Palma’s Telescopes and the Nobel Prize

    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…

December 10, 2011
Read More >>