Science Seat: Another Earth called a certainty
An illustration shows a possible planet outside our solar system. The Milky Way is thought to have at least 100 billion planets.
March 22nd, 2013
02:03 PM ET

Science Seat: Another Earth called a certainty

By Nana Karikari-apau, CNN

Editor's note: The Science Seat is a feature in which CNN Light Years sits down with movers and shakers from different areas of scientific exploration. This is the seventh installment.

Sara Seager is a professor of physics and planetary science at MIT. She works on exoplanets, which orbit stars other than the sun.

Seager considers herself a pioneer and risk taker. She worked on exoplanets before it was considered cool, when people thought the field would go nowhere. Time magazine named Seager one of the 25 most influential in space in 2012, and she recently appeared in a CNN gallery of top women scientists.

MIT's Sara Seager studies exoplanets, which orbit stars other than the sun.

CNN Light Years recently chatted with Seager about her work. Here is an edited transcript:

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