Blocking light to see planets beyond the solar system: Jeremy Kasdin at TED2014

Posted: March 20, 2014 in Uncategorized

TED Blog

Jeremy Kasdin. Photo: James Duncan Davidson Jeremy Kasdin. Photo: James Duncan Davidson

“The universe is teeming with planets,” and Jeremy Kasdin, an astronomer at Princeton University, wants to see them. Not in the way they’ve been detected so far, but directly. He wants to build a space telescope that will image a planet around another star and tell if it harbors life. There is probably one per star in the galaxy, and maybe 1/5 of those stars have an Earth-like planet around them. “But we haven’t seen any of them, we’ve only imaged them indirectly.”

He shows the famous image of the Pale Blue Dot, the image of Earth taken from 4 billion miles away by Voyager 1. That’s the kind of image that would tell us if there was life on other worlds. But it’s hard to do. To show why, Kasdin shows what a Hubble image of the Earth would look like from: the orbit…

View original post 301 more words

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s