For nearly two decades, the Mars Reconnaissance Orbiter has captured ultra-high-definition images of Valles Marineris, Mars’ massive canyon system. Stretching over 4,000 km and plunging 7 km deep, it ...

Valles Marineris is more than a canyon—it’s a geological mosaic captured in stunning detail by the Mars Reconnaissance Orbiter. The canyon walls expose lava flows, sedimentary layers, hydrated ...

Hands, text, backgrounds, and too-perfect faces can give AI away. Use these five quick checks — and a final context test — to judge images fast.