Down to Earth with Zac Efron review: Eco-doc series makes green sexy

Earth's Oxygen Came From an Unexpectedly Deep And Hot Source, Study Suggests

Supermassive black hole devours a star,blasts it remains towards Earth

A Martian megatsunami may have been caused by an asteroid collision similar to the Chicxulub impact – which contributed to the mass extinction of all non-avian dinosaurs on Earth 66 million years ago – in a shallow ocean region