Exciting announcement

As most of my bloggy visitors will know, I’m a strong supporter of web- and blog-based scientific debate. I believe that the formal, semi-formal and casual discussions that take place all over the web can really enrich our experience of science – from learning entirely new things about completely different areas of science, to gaining new insights into problems in our own fields of research and building a network that’s unrelated to our geographical location or seniority in the science hierarchy. This is not just some baseless conviction; this has really been my experience since I started reading and writing blogs.

So with that in mind, I’m really pleased to announce that, from January 2011, I’ll be the new Physical Sciences Editor for ResearchBlogging. Each week I’ll be picking out some of the most interesting research posts in the fields of physics, astronomy, maths, engineering, chemistry, computer science and geosciences, from the many bloggers that are signed up with the site. I’ll do my best not to be too biased towards astronomy – as my day-to-day work is kind of a giant stew of  several areas of science and engineering, my interests are spread wide and far anyway. And of course I’ll still be writing my own research posts on here as well.

A big thanks to Dr Skyskull, whose shoes I’ll be attempting to fill, and an excited hello-wave to fellow new editor Krystal D’Costa of Anthropology in Practice, and the rest of the team of editors. And to all the bloggers: I look forward to reading all your excellent work. Keep it coming!

Lunar eclipse

Last night we were treated to the double delight of a total lunar eclipse on the longest night of the year. And when I say “we” I mean “you lucky lot over in the US”, who got to see the full event in darkness and, at least in some places, clear skies.

A lunar eclipse occurs when the Moon passes behind the Earth, so that it falls in the Earth’s shadow. So even with a total eclipse the Moon doesn’t go entirely dark, like the Sun does with a solar eclipse, it simply looks a little brownish. That doesn’t sound exciting – but it’s actually quite impressive and other-worldly to see.

So luckily lots of talented photographers snapped away at the Moon last night, and here are some nice pictures I found among thousands posted to Flickr today.

[Update 21/12: Of course Australians also got to see some of the eclipse. Amanda has some nice pictures on her blog of the partially eclipsed Moon.]

[Update 27/12: Added the amazing video by William Castleman Featured on Gawker. Hat-tip to Niruj for the link.]

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A new kind of delicious

For some time now, I’ve been using social bookmarking site delicious to keep track of interesting links, both for my personal use and for sharing with others. My new delicious bookmarks get posted automatically to twitter and into the handy little widget on this blog. Delicous’ parent company, Yahoo, is in the process of laying off 4% of its staff, and it seems like delicious will be closed down as part of this exercise. Not cool! So I’m looking for a new social bookmarking thingy that works well with twitter and WordPress. If you have any suggestions, please leave them in the comments or send via twitter. Thanks!

Sense, Secrecy and Cartoons

In the age of open data, privacy and secrecy are hot topics. There is a growing movement towards openness and data sharing in government, as well as in science. Like many scientists, I’m convinced that openness and transparency are largely a good thing, and we astronomers generally take policies of data sharing and posting our work to open access repositories for granted. But in other areas of society the advantage of or need for openness is not so clear. An increased call to openness inevitably leads to the question: when should information be secret, and when should it be open? Under what circumstances is it ok, indeed is it recommended, not to share data and information? Or: “When does my right to privacy trump your need for security?”.

On Edge, American entrepreneur Danny Hillis asked the question: “Who gets to keep secrets?”. The result is an interesting collection of short essays on the topic of secrecy and on the balance between privacy and security, by Lee Smolin, George Dyson and Clay Shirky, amongst others. Read their insightful answers here.

No discussion of secrecy and openness in 2010 is complete without mentioning the Wikileaks phenomenon. On Cosmic Variance, Sean Carroll has written about Wikileaks’ recent releasing of a large volume of diplomatic cables to the world, and I find myself agreeing with his arguments. On the balance I think Wikileaks is a good thing, but I’m not entirely sure I see the value of many of these cables being in the public domain.

Finally, xkcd as usual hits the nail on the head:

VLT timelapse

Check out this amazing timelapse of the 4 VLT unit telescopes at Paranal in Chile. The video was made by Stephane Guisard, who is an optics engineer at the observatory. His YouTube channel has several more excellent astro-themed videos. Make sure you turn them up the highest resolution your screen can handle for the full effect!