The same researchers discovered the first evidence of ice on an asteroid called 24 Thermis earlier in 2010.
Both ice-containing asteroids reside in the asteroid belt between Mars and Jupiter.
The Associated Press contributed to this report.
Pasadena scientists find ice on 2nd asteroid
PASADENA, Calif. As a result of the significant discovery, astronomers are now suggesting that water is more common in the universe than previously thought.
