CBC News technology
Killer whales eat dolphins. So why are these dolphins tempting fate?
Killer whales are the only predators that regularly kill and devour Pacific white-sided dolphins off the B.C. coast. So researchers were surprised when drone footage showed such dolphins playing within a few fin-spans of killer whales’ toothy jaws.
Preventing the next fall: Slips, stumbles and spills dangerous for seniors
Falls are one of the leading causes of injury in Canada, costing the health-care system more than $2 billion in 2017. And the often-overlooked risk can also be deadly, especially for seniors. But there's increasing research and intervention aimed at preventing the next fall from happening.
Bob McDonald's blog
Following our robotic pets to other planets
NASA declared the Mars Opportunity rover dead this week. CBC's Bob McDonald pays tribute to Opportunity and the other robot pioneers that are exploring places in the solar system where humans can't go.
Welcome to Decentraland, where investors spend real-world dollars flipping virtual real estate
Investors are buying plots of land in a virtual city the size of Washington, D.C., hoping to sell them for profit. Others are snapping up space looking to build art galleries, casinos and movie theatres in a parallel virtual world.
Dance of the electrons: U of A scientist hits sweet spot between physics and swing
How do you clean up junk in outer space? Try a harpoon
As It Happens
How photos of your hands could help bring child predators to justice
Amber Alert mobile system working despite glitches, but could be tweaked, experts say
Year in space put U.S. astronaut's disease defenses on alert
These slimy, hungry blobs may have been the Earth's first creepy crawlies
Why one advocate says nuclear energy needs to be part of the plan to solve climate change
5 simple ways to reduce your exposure to air pollution outside
What on Earth?