Carbon found in Mars rock indicates possible LIFE

http://news.bbc.co.uk/2/hi/science/nature/4688938.stm

A carbon-rich substance found filling tiny cracks within a Martian meteorite could boost the idea that life once existed on the Red Planet.
The material resembles that found in fractures, or "veins", apparently etched by microbes in volcanic glass from the Earth's ocean floor.

Theorists claim dark energy does not exist

http://www.physicsweb.org/articles/news/10/2/4/1

Most cosmologists believe that the universe is dominated by "dark energy" -- a mysterious form of energy that could explain why the universe is expanding and accelerating at the same time. Now, however, theoretical physicists have studied a new model of gravity that can, they claim, account for the acceleration of the universe without any need for dark energy. Their model relies instead on modifications to the way that gravity behaves at ultra-large cosmological distances (Phys. Rev. Lett. 96 041103).

Could NASA Get To Pluto Faster? Space Expert Says Yes - By Thinking Nuclear

http://www.physorg.com/news10605.html

Interesting, short read.

Paul A. Czysz, a 30-year veteran of the industry, continuing consultant to the U.S. military and professor emeritus of aerospace engineering at St. Louis University, thinks NASA can curb the travel time to the outer planets from nearly a decade to a matter of weeks - something he considers critical for the human exploration of the solar system. What's required, he said, is a renewed commitment to nuclear propulsion.