“Will Alien Life Resemble Us (and How Could We Possibly Know)? Astrobiology, Evolution and the Amino Acids”
The first lecture of the semester in the STSci Astrobiology Lecture Series is coming up this Friday! This lecture will be by Stephen Freeland from the Institute for Astronomy at the University of Hawaii. It’ll be in Bahcall Auditorium at STSCI starting at 12pm on Friday, September 3rd. The lecture is entitled “Will Alien Life Resemble Us (and How Could We Possibly Know)? Astrobiology, Evolution and the Amino Acids.” The abstract:
A fundamental challenge for astrobiology is to establish the relative contributions of chance versus predictability in the origin and evolution of life on our own planet. Thus, for example, all Earth-life creates metabolism from an interacting network of protein molecules that catalyze various biochemical reactions. Furthermore, early during evolution it had arrived at a standard set of 20 amino acid building-blocks with which to build each of these proteins. We now have good reason to think that many of these amino acids are formed in significant quantities throughout the galaxy – but so are many others – so would alien life be like us, and how could we possibly know?
|Print article||This entry was posted by afuller on August 30, 2010 at 4:13 pm, and is filed under Lectures, Space Telescope Science Institute. Follow any responses to this post through RSS 2.0. You can leave a response or trackback from your own site.|
No trackbacks yet.
about 3 years ago - 37 comments
The abridged version of the interview with Dr. Jocelyne DiRuggiero is now available on the 365 Days of Astronomy website!
about 3 years ago - 26 comments
As mentioned on the email list, this year we’re attempting to do a little astrobiology public outreach and education. Our first series of efforts are interviews with faculty and researchers here at Johns Hopkins who are actively involved in astrobiology-related research. These interviews will be featured on the once-a-day podcast site, 365 Days Of Astronomy. More >
about 3 years ago - 1 comment
A quick reminder to everyone that we’re having our December meeting this Monday at noon in Shaffer 302. There will be pizza, drinks, and presentations.
Veselin Kostov will give a quick presentation entitled “Speckle imaging: causes and (partial) solutions.”
I will give an as-of-yet unnamed presentation about atmospheric bacteria on Earth and the potential for microbial More >
about 3 years ago - 1 comment
Here is more information about Thursday’s announcement. Something to do with arsenic versus phosphorus. Are there any biology people willing to educate us on the differences between the two as far as building organism?
Here are some fun facts: I don’t know what the solar abundance of As is, but the chondritic abundance is roughly 2.29 More >
about 4 years ago - 2 comments
From io9.com comes a post about extremophiles here on Earth. The article goes under the somewhat hyperbolic title “Five Creatures That Prove life Could Exist On Other Planets (Or In Space),” but it’s an interesting read nonetheless. They discuss this little critter to the left as well as worms that live “on a slab More >
about 4 years ago - 387 comments
Catherine Neish from the JHU Applied Physics Laboratory is presenting at this week’s planetary science seminar in the Earth & Planetary Science department. It’ll be the last seminar of the semester, so don’t miss it! The presentation is titled “Titan: An Earth Analogue in the Outer Solar System,” and the paper sent out for prereading More >