New study challenges Jupiter's role as planetary shield, protecting Earth from comet impacts
|View of Jupiter in natural colour [Credit: NASA, ESA, and |
A. Simon (Goddard Space Flight Center)]
"In an unprecedented effort to solve the riddle as to whether jovian bodies shield habitable planets from impacts catastrophic to life, Dr. Grazier presents a modeling study that speaks to the incredible complexity of planetisimal evolution in the Solar System," says Sherry L. Cady, PhD, Editor-in-Chief of Astrobiology and a Chief Scientist at the Pacific Northwest National Laboratory. "In this paper, we learn that the overly simplistic 'Jupiter as shield' concept is a thing of the past, and future research in this area will require the continued use of the kinds of robust simulation strategies so effectively employed in Dr. Grazier's work."
Source: Mary Ann Liebert, Inc./Genetic Engineering News [February 03, 2016]