While last night on Earth we got a lunar eclipse, the Blue Ghost lander on the moon saw the opposite - a solar eclipse.The Latest Tech News, Delivered to Your Inbox ...

And in its own way, the planet’s rusty red surface tells a story of destruction. Billions of years ago, the fourth planet from the sun could have been mistaken for Earth’s smaller twin ...

Just like filters, it can be useful to think about the primary colours of light when working out which colour of light will be reflected by a surface. If cyan light shines at a red surface ...