UNIVERSITY PARK, Pa., Jan. 30 (UPI) -- U.S. researchers say they've come up with a more precise model for the "goldilocks" or habitable zone around stars where planets could conceivably support life.
A team in the Penn State University department of geosciences reports their modeling of habitable zones where planets could have liquid water that might sustain life suggests those zones are actually farther away from stars than previously thought.