Earth's Oceans Extraterrestrial Material?

Scientists suggests that water was not part of Earth's initial inventory but stems from the turbulence caused in the outer Solar System by giant planets.

Reference:
Volatile accretion history of the terrestrial planets and dynamic implications. Francis Albarede. Nature. 29. October 2009.

Mystery of the Epsilon Aurigae Star

The super-bright star, epsilon Aurigae, dims its lights every 27 years puzzles scientist. The star is too bright to be observed with a majority of professional telescopes, so a collaborative project called "Citizen Sky" is created to solve this mystery. The star will be dim during all of 2010. Scientists hypothesize that there is a mysterious companion with the star that causes this phenomena.

Reference: http://www.wired.com/wiredscience/2009/08/citizensky/

First Discovery of Life's Building Block in Comet

NASA scientists have found glycine, a fundamental building block of life, in samples of cornet Wild 2. Glycine is an amino acid that make proteins.

This discovery supports the theory that life's ingredients are formed and delivered to Earth from meteorite and comet impacts.

Further information is published in the journal Meteoritics and Planetary Science.

Reference: http://www.sciencedaily.com/