Chris Lintott’s Universe

January 11th, 2007

RAS Meeting tomorrow

Posted by chrislintott in Uncategorized

Just a quick plug for the RAS meeting tomorrow afternoon. The open meeting is, well, open to all and the program tomorrow should be excellent. Talks are at a general level (usually!) – the program is here and includes galaxies, planet-hunting, manned spaceflight and Titan. It starts at 16:00 and is well worth a couple of hours of your time.

January 11th, 2007

Comet McNaught

Posted by chrislintott in Images

Althought I was clouded out last night, I’ve been enjoying the many pictures which arrived in my inbox overnight. Here are some sent to BBC News, and very lovely they are too.

Or at least, they are until we click through to picture 5, where we’re told that

Comet McNaught is passing close to the Sun, whose gravity pulls material off, giving it a big and visible ‘debris field’

which happens to be complete rubbish (as well as annoying english teachers around the world by only mustering ‘big’ and ‘visible’ as adjectives). It is the warming of the comet as it approaches the Sun that leads to the expulsion of material, which is then driven away from the Sun by the solar wind. Nothing to do with gravity at all. But I didn’t need to tell you that, did I?

UpdateBBC site now corrected.