Planet Earth

Is it true that no two snowflakes are exactly the same? © Getty Images

Is it true that no two snowflakes are exactly the same?

How long does it take stalagmites and stalactites to form? © iStock

How long does it take stalagmites and stalactites to form?

Largest single volcano on Earth uncovered © Getty Images

Largest single volcano on Earth uncovered

Will climate change give us tiny horses? © Getty Images

Will climate change give us tiny horses?

What'll be the next big natural disaster? © Getty Images

What’ll be the next big natural disaster?

Why can't nuclear waste be sent into outer space? © Getty Images

Why can’t nuclear waste be sent into outer space?

Could a geomagnetic reversal kill us all? © Getty Images

Could a geomagnetic reversal kill us all?

Can lightning smash glass? © Getty Images

Can lightning smash glass?

The science of fracking © Getty Images

Fracking: the science

What would happen if you dropped a bomb into a volcano? © iStock

What would happen if you dropped a bomb into a volcano?

Why does the ground smell after it rains? © Getty Images

Why does the ground smell after it rains?

Do other planets influence Earth’s tides? © Getty Images

What causes rogue waves?

What’s the biggest man-made hole in the world? © Getty Images

What’s the biggest man-made hole in the world?

What's the highest mountain on the ocean floor? © Getty Images

What is the highest mountain on the ocean bed?

Can boats sail faster than the wind? © Getty Images

Can boats sail faster than the wind propelling them?