American alligators are frequently seen ambling around golf courses in Florida as players warily compete their rounds. But new research suggests the reptiles partake in a far more outlandish habit when away from the greens – eating sharks. US researchers have documented instances of alligators preying upon small sharks along the Atlantic and Gulf coasts. A study, published in the journal Southeastern Naturalist, claims to be the first scientific study of the largely unseen struggle between the two feared predators. on 18 Oct 2017

Last month, SpaceX CEO Elon Musk made a presentation before the International Astronautical Congress in Adelaide, Australia, a followup to his 2016 talk where he unveiled SpaceX’s Interplanetary Transport System and his ambitions to colonize Mars. This year’s presentation showcased some updates and design changes to his plans and the rocket itself — he wants to put all of SpaceX’s resources into the BFR, and use it to provide long-distance travel around planet Earth. on 17 Oct 2017

The Virgin investment group has taken an undisclosed stake in Hyperloop One, one of several companies trying to create a pod-based transport system. The terms of the deal have not been disclosed. Virgin's founder, Sir Richard Branson, is joining the Los Angeles-based firm's board as part of the deal, and it is rebranding itself as Virgin Hyperloop One. One expert suggested the tie-up would help raise the company's profile. "This is unproven technology and there's a long way to go before it ever finds itself in use in the real world," commented Prof David Bailey from Aston Business School. on 16 Oct 2017