It was around 1870 when the British physicist John William Strutt, better known as Lord Rayleigh, first found an explanation ...

Keep reading to learn more about Earth's different layers, its atmosphere, and what makes the "blue planet" unique ... and an oxygen-rich atmosphere all help support life on Earth.

Millions of Australians will be treated to a rare astrological sight this week, as a total lunar eclipse is set to arrive on Friday.

Greg Foot discovers why the sky is blue. He explains that outside the Earth’s atmosphere space looks black, but from the Earth’s surface the sky looks blue. He investigates this effect by ...