We rank the best Sega Genesis games of all time. From Sonic the Hedgehog and Streets of Rage 2 to Phantasy Star IV and Gunstar Heroes, these 16-bit classics defined speed, style, and arcade action.

In September, NASA announced the discovery of a possible sign of life, known as a potential biosignature, on Mars. The Perseverance rover, which has been exploring a dried-up lakebed for years, found ...