ABOVE THE AMAZON JUNGLE, Peru — Droughts and rising temperatures are damaging the world's largest rainforest. Tropical ecologist Greg Asner has developed a high-tech eye in the sky to map changes to the Amazon. What he's discovering could affect us all.
How should non-scientists think about the science of what's happening right now to the planet? And where do we go from here? To find out, we turned to climate expert Paul Mayewski, the director of the Climate Change Institute at the University of Maine and the science adviser for GlobalPost's yearlong investigation Calamity Calling.
Japanese scientists said they're preparing to blast a crater in an asteroid to find out what it is made of after successfully testing their new space cannon.
The Japan Aerospace Exploration Agency (JAXA) said the huge weapon would fire a metal bullet at the surface of asteroid 1999JU3 some time in 2018.
The Hayabusa-2, which will launch the weapon, will then land on the surface and take samples of the newly-disturbed soil as part of a project searching for organic materials or for any sign of water.