Satellites Can Help Detect When a Volcano’s About to Blow
Researchers used thermal radiation data to find patterns in recent eruptions—providing another metric to help get ahead of a potentially deadly blast.
Hummingbirds Can See Colors We Can’t Even Imagine
When humans see purple, we’re really seeing a blend of red and blue light. Hummingbirds see purple plus ultraviolet—and lots of other nonspectral colors.