Simpson and Chen ran mathematical models looking at how differently sized Earth-like worlds would have affected the rest of ...

A world-leading designer of space robots says gigantic new rockets being tested by billionaires Elon Musk and Jeff Bezos are ...

This year, a rare planetary parade will feature six planets aligning in a line, including Venus, Jupiter, Saturn, Mars, ...

Despite the name, a planetary alignment isn’t when the planets get in a row, it’s when a fair few gather on one side of the ...