Seven planets are aligning in the night sky this week, creating a brief chance to see a "planetary parade." Mercury, Venus, ...

A new machine learning model has predicted that there are 44 Earth-like planets in other star systems in the Milky Way galaxy, with researchers from Switzerland claiming that the algorithm at the ...

The recent and much-ballyhooed "planetary parade" was an interesting celestial event that likely spurred even infrequent skywatchers to seek out the seven planets stretched out across the sky.

The search for Earth-like exoplanets—planets orbiting stars other than our sun—is a central topic in today's planetary research, because extraterrestrial life is most likely to be found there ...