Viewed from space, one of the remarkable features of our planet is that it has continents and oceans.
Volcanoes are among the most dramatic features of the Earth, and a sure sign that the planet is alive.
The continental crust is much, much older than the oldest surviving oceanic crust.
Water is an essential ingredient of the Earth, and without it, we would not be here.
The race to explore space is speeding up, Chris Impey looks at the astronomy and technology to bring people to the last frontier
Celebrate International Women's Day with our most-watched STEM talks delivered by women
