Just four months ago I posted about a paper recently published by Leslie Young and coauthors that described three possible scenarios for Pluto's atmosphere. Yesterday, Cathy Olkin, Leslie Young, and coauthors posted a preprint on arXiv that says that only one of those scenarios can be true. And it's a surprising one. The title of their paper says it all: "Pluto's atmosphere does not collapse."
Communication with the Deep Impact spacecraft was lost some time between August 11 and August 14. The team has determined the cause of the problem, and is trying to figure out how to restore communication.
What have the recent discoveries of thousands of exoplanets told us about how we got here, and whether we are alone? In Destiny or Chance Revisited, Stuart Ross Taylor attempts to answer those two questions.
LADEE's launch window opens two weeks from today, on September 6. The brief little mission aims to study the lunar atmosphere and dust environment before future soft landings disturb its currently pristine state.