Why does Toto's swirling water look like a tornado? Under certain conditions, liquid like water and the gases in air can act in similar ways. Wind swirling in a tornado and water swirling down a drain ...

By studying this tornado ... unlock a new area of black hole science. "When we first observed clear signatures of black hole ...

If you're looking for easy activities to keep kids busy on a rainy day, you're in the right place. Make the most of the weather with my collection of easy ...