After a year of nodding, waving and bumping fists and elbows, the embrace is back, with government approval.

Aging comes for us all – but perhaps the unpleasant symptoms don’t have to. In a new study, scientists may have found a kind of anti-aging immunotherapy, reinvigorating immune cells to better clear out defunct cells known to contribute to the aging process.

Boston-based company Regent has taken US$465 million in pre-orders for its super-fast electric "Seaglider." Using the wing-in-ground effect, this 180-mph (290-km/h) beast promises twice the range of an electric aircraft, and a revolution in coastal transport.

Beyond the boundaries of our solar system, a gentle rain of plasma falls.