The World from PRX

comet

interstellar visitor
Science
In a first, scientists spotted an ‘interstellar visitor’ in our solar system
Comet Lovejoy has probably passed through the inner solar system at least once already—we just weren't alive to see it.
Science
Look hard and you can see Comet Lovejoy lighting up the night sky
An artist's concept of NASA's MAVEN spacecraft approaching Mars. The probe entered Mars orbit on September 21.
Science
A NASA spacecraft reaches Mars just in time to see an unexpected guest
Thanksgiving Obamacare
Global Scan
Obama’s having trouble fitting his turkey into the oven this year
The Living on Earth Almanac
Profile of a Scientist: Lucy McFadden
Environment
Hunting asteroids before they hunt earth