Monthly Archives: September 2013

  • Habitable Zone Lifetimes of Exoplanets around Main Sequence Stars

    Last week, my first research paper was published in the journal Astrobiology. The paper outlines our method for estimating how long ‘habitable’ conditions may exist for on planets that have been discovered in the ‘habitable zone’ – a concept I regularly discuss on this blog and elsewhere. The run-up to its publication has been surprisingly hectic, and it has received a lot of media attention. Whilst this is great for getting the science out there, I want to make sure that there is something available on the internet where I discuss the paper in my own words in case there

  • Men are from Mars and Women are from Mars, too?

    There’s been a lot of press coverage this week about a presentation by Steve Benner at this year’s Goldschmidt conference in Florence supporting the idea that life on Earth originated on Mars, and then spread to Earth. This would mean we’re ALL Martians. I’m not at the meeting (new baby + sequestration), so I didn’t see the presentation. From what I can piece together, it provides nice support in the form organic chemistry for a very exciting hypothesis… but the idea still needs a LOT of work in the form of geochemistry/planetary chemistry before the majority of scientists