An image released by Tesla Motors, is a conceptual design rendering of the Hyperloop passenger transport capsule. If it were anyone else, the notion of digging hundreds of miles of tunnels to create a new subterranean transportation network under congested cities would seem like pure science fiction. But the dreamer behind this vision is Elon Musk, the billionaire innovator who has already shown with his Tesla electric cars and SpaceX rockets that he thinks big and doesn't wait for others to transform fantasy into reality. Once again, Musk is aiming to shake up an arcane industry not used to outside-the-box thinking and yet potentially ripe for disruption: the underground world of tunneling. He could use tunneling to achieve his moonshot goal of clearing up Los Angeles traffic.

Editors note: Imagine if every time you used Google, you were reminded of how you lost your family -- then found them many years later. That's how it is for Saroo Brierley, whose life story is the basis for Lion, nominated for six Oscars including Best Picture and Supporting Actor (Dev Patel, who plays Brierley as a young man). Brierley penned the following op-ed for Mashable about how technology -- which emerged in the years after he was lost -- was the only thing that allowed him to find his way back. Saroo Brierley (left) and the two young men who play him: Sunny Pawar and Dev Patel. We use Google every day to search for answers.

The expedition in the Southern Ocean found that stocks of krill under the ice were five times more concentrated than those in open waters. The shrimp-like species is a key food for penguins, whales and fish. The importance of sea ice as a nursery for krill has long been suspected. However, these findings are the first large-scale measurements of the breeding ground's existence. The discovery was made by UK scientists from the British Antarctic Survey, the Open University and the Marine Laboratory, Aberdeen.