NASA astronaut Terry Virts explores water tension in microgravity by dissolving an effervescent tablet in a floating ball of water. Matthew Stock reports.
A New York Times article says Biden and his associates are looking into a presidential run, a move that would upend the field of Democrat candidates.
A remote-controlled brain implant that can determine the path a mouse walks is being developed by scientists who hope it could one day be used to treat a range of neurological disorders in humans by wirelessly targeting therapies to specific neural networks. Matthew Stock reports.