USA: The perilous mission of hurricane hunters
As Hurricane Irma approached the coast of Florida, the skies above were filled with planes and passengers rushing to escape the storm. Yet one of those flights was actually heading straight into the eye of the storm. On board, US army pilots were collecting precious data. They are called "hurricane hunters".
The focus on Hurricane Irma overshadowed a much deadlier disaster in Mexico this week. That country was hit with a massive earthquake, which killed nearly 100 people and flattened thousands of buildings in a matter of seconds.
We also head to the heart of the Amazonian rainforest. There you'll find gigantic geometric symbols dug into the earth similar to crop circles, but hundreds of years old. So far they've baffled archaeologists as to how and why they first came to be.