10 things MESSENGER will be remembered for

Later in April, one of the most successful NASA missions will come to an explosive close. Scientists and engineers at the NASA Applied Physics Laboratory at Johns Hopkins University will accelerate the robotic Mercury Surface, Space Environment, Geochemistry and Ranging spacecraft – shortened as MESSENGER – downward, like a bullet at Mercury. MESSENGER was launched inContinue reading “10 things MESSENGER will be remembered for”

The violent history of the Chelyabinsk meteorite

The Copernican May 22, 2014 With the second largest air burst recorded in history, a meteorite exploded over the southern Ural region of Russia in February 2013 and crashed near the city of Chelyabinsk. During its journey through Earth’s atmosphere, it underwent intense heating, eventually glowing brighter than the Sun, and blew up with a bright flash. The accompanyingContinue reading “The violent history of the Chelyabinsk meteorite”