Why does its southern hemisphere rise significantly above the smoother northern plains? A groundbreaking study using seismic ...

When astronomers found a large world farther out than Pluto, it became one of the final nails in the coffin of our ninth ...

But how well do you really know our planetary neighbor? This quiz of 15 questions will test your knowledge of Mars' size, surface and history, as well as scientists' attempts to study it. Remember to ...

Use precise geolocation data and actively scan device characteristics for identification. This is done to store and access information on a device and to provide personalised ads and content, ad and ...