Star's Habitable Zone Includes Possible Giant Earth from 60-Second Space

Star's Habitable Zone Includes Possible Giant Earth

1 minutes Posted Nov 13, 2012 at 4:45 pm.

0:00

1:16

Share at current time

Show notes

A planet at least seven times as massive as Earth orbits comfortably in the habitable zone of the star HD 40307. John Matson reports