One of the most exciting aspects of geosciences in the 21st century is the ability to watch geologic events from space. We can see an eruption or earthquake as it happens—sometimes catching it in the act. We can also roll back the film and look at what things were like in images taken beforehand. It is one of the most fundamental changes to how we look at earth processes since we were able to go the other way and see rocks at a microscopic level.
Here are two great examples. The first is