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NASA discovers planet eight times bigger than Earth
NASA has been monitoring a never-before-seen planet in its solar system, which is eight times the size of Earth. The ...
What lies at the center of the Earth? The answer keeps changing.
A new study out this week said that the Earth's inner core is less solid than previously thought. Scientists still have questions, though.
BBC1y
What is the Earth?
Narrator: 4 and a half billion years ago, clouds of cosmic dust and gas which were orbiting the Sun collided into one another, creating the Earth, our planet, the home of mankind. It spins at 1000 ...