Astronomers May Have Discovered the First Extragalactic Planet

NASA may have discovered an extragalactic planet for the first time in human history

Astronomers detect signs of an atmosphere stripped from a planet during giant impact. Such planetary smashups are likely common in young solar systems, but they haven’t been directly observed.

Ten of the world's most protected forests have become net emitters of carbon, as they are degraded by human activity and climate change. The alarming insight is from a study of planet-warming gases emitted from and absorbed by forests in Unesco World Heritage sites.