Pictures of the solar corona (5 pictures)
The extended outer atmosphere of the Sun is called the corona. It has a temperature of millions of degrees, but it is 10 billion times less dense than the atmosphere of the Earth at sea level.
The extended outer atmosphere of the Sun is called the corona. It has a temperature of millions of degrees, but it is 10 billion times less dense than the atmosphere of the Earth at sea level.
The best Christmas is always the creative and eco-friendly type. Use your imagination to come up with some great ideas and get as creative as you can!
WARNING: it’s super shocking!
Abandoned towns exist all over the world, but there’s something uniquely American, about ghost towns. Perhaps it’s because so many sprang up in the 19th-century Old West, when a rush to find gold created an old-style economic bubble. When the money or luck ran out residents left leaving behind empty houses.
The Cold War is long over. But that doesn’t stop the USA being prepared for all out nuclear war. This map produced by the Natural Resources Defense Council and the Federal Emergency Management Agency (FEMA) shows likely targets for hypothetical enemies of the US in a nuclear conflict.
Never underestimate the power of the human brain.