Feeding Ravens at the Roque

Sheila Crosby feeding cat biscuits to a cheeky raven, Roque de Los Muchachos
May 23, 2015

  This morning the ravens came to say hello to my group of tourists. To begin with they’d eat food I left for them, then they moved on to eating out of my hand, and now they’ll jump onto my arm or shoulder, if I make it worth their while. Jose Luis Rodrigo Alonso took this great photo of the cheekier one on my arm, helping himself from the box…

Read More >>

Tower of Flowers

Blue tower of jewels (Echium webbi) Breña Baja, La Palma, Canary Islands
May 20, 2015

  Because La Palma is an island, the plants here evolved in isolation, and many of them are unique to the island, or to the Canaries. One of my favourites is the Tower of Jewels — Tajinaste in Spanish and in Latin, the Echium genus. It’s related to borage, and most species have a big spike with hundreds of tiny flowers. The most spectacular is Echium wildpretii, which really is…

Read More >>

Amazon links

The front cover for 'A Breathtaking Window on the Universe'
May 15, 2015

Well, I finally got my books on sale. I would very, very much appreciate reviews. I’m not asking anyone to lie, but if you liked any of my books, please put in a review. And if you didn’t like it, you are, of course, completely entitled to your opinion, but perhaps you’d like a cup of tea instead? And if you see anything wrong with the listing, please, please tell…

Read More >>

Explaining Astrophysics to this year’s Transvulcania Winner.

Video of Sheila Crosby with Luis Alberto Hernando discussing astrophysics
May 9, 2015

One of the fun things about Thursday’s job was meeting Luis Alberto Hernando. Not only was he the favourite to win this year (which he did in an amazing 6:52:39), but he’s also my kind of bonkers.   (For those of you who don’t know Spanish, I’m translating myself into Spanish, and then he’s saying the same thing without the Mad Scientist accent. Very seriously.)

Read More >>

Sunset at the Roque de Los Muchachos

Gran Telescopio Canarias at sunset, Roque de Los Muchachos observatory
April 29, 2015

  The Roque de Los Muchachos is a spectacular place to watch the sunset. For one thing, you’re usually above the clouds (which is one reason the observatory is there.) In fact, sometimes the clouds are so much lower than the Roque that the sun sets well below you. This means that your shadow on a wall is taller than you, and the shadows of your legs go on forever….

Read More >>

New Cherenkov Telescopes

Proposed Chrenkov Array
April 27, 2015

  The Cherenkov Telescope Array (CTA) is negotiating with the IAC to site more Cherenkov telescopes on La Palma. It’s not guarenteed that they’ll come here, but it’s highly likely. What is certain is that they’re going to build a prototype here. So what’s a Cherenkov telescope? The oversimplification is that it’s a telescope to look at gamma rays instead of visible light. For more detail, see this article on…

Read More >>