After four years of hype, Optimus shows some progress, yet the humanoid struggles to prove it's worth beyond staged demos.

A San Rafael startup proposed a sci-fi solution to raise areas facing the twin threats of land subsidence and sea level rise.

After a shipwreck, an intelligent robot called Roz is stranded on an uninhabited island. To survive the harsh environment, Roz bonds with the island's animals and cares for an orphaned baby goose.

Given that more than a million people applied to take part in the London Marathon this year, you might assume that 26.2 miles is the UK’s most popular race distance. But you’d be wrong. It’s the half ...