December 12, 2017

30.03.11: Welcome to Mercury!

Brave New World; The extreme northern plains of Mercury. (Credit: NASA/JPL).

†† A new resident has taken up orbit around the solar systemís inner most-world. Fresh from orbital insertion earlier this month, NASAís Messenger spacecraft opened its eyes and began relaying images that have been a web sensation over the past 24 hours. Messenger is currently 6 light minutes from Earth; its looping orbit takes it from a periapsis of about 200 km to apsis at 1,500 km. [Read more...]