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The National - A worm revolutionApr 27, 2014 | 5:29The National A worm revolution Video
The National A worm revolution Apr 27, 2014 | 5:29An Ontario woman is championing a movement to use worms to help with the world's garbage crisis.
The National - Extreme weather is the new normalApr 23, 2014 | 2:02The National Extreme weather is the new normal Video
The National Extreme weather is the new normal Apr 23, 2014 | 2:02Climate specialists are calling for a national strategy to help Canadians prepare for extreme weather
The National - Space veggie gardenApr 13, 2014 | 2:06The National Space veggie garden Video
The National Space veggie garden Apr 13, 2014 | 2:06Gardening kits for space may help grow fresh veggies in Canada's north
The National - Bright MarsApr 8, 2014 | 2:38The National Bright Mars Video
The National Bright Mars Apr 8, 2014 | 2:38CBC's Bob McDonald explains why Mars is at its brightest in 6 years, and addresses the sighting of a mysterious light on the planet that has many on full alert
The National - Scientists warn action on climate change must come nowMar 31, 2014 | 3:25The National Scientists warn action on climate change must come now Video
The National Scientists warn action on climate change must come now Mar 31, 2014 | 3:25A UN scientific panel has made an urgent call to take action against climate change, warning it's now or never.
The National - Rare and valuable meteor lands in OntarioMar 21, 2014 | 2:13The National Rare and valuable meteor lands in Ontario Video
The National Rare and valuable meteor lands in Ontario Mar 21, 2014 | 2:13Scientists are asking residents near St. Thomas, Ontario to look for fragments of a rare meteorite.
The National - Two fireballs seen in Nova ScotiaMar 19, 2014 | 2:50The National Two fireballs seen in Nova Scotia Video
The National Two fireballs seen in Nova Scotia Mar 19, 2014 | 2:50Bob McDonald explains the science behind the two meteors that have been seen in Canada's skies the past two days.
The National - Evidence of post-Big Bang expansion discoveredMar 17, 2014 | 2:25The National Evidence of post-Big Bang expansion discovered Video
The National Evidence of post-Big Bang expansion discovered Mar 17, 2014 | 2:25Science correspondent Bob McDonald explains what's new about the Big Bang theory.
The National - Playing Pokemon video game turns into social experimentMar 9, 2014 | 2:24The National Playing Pokemon video game turns into social experiment Video
The National Playing Pokemon video game turns into social experiment Mar 9, 2014 | 2:24What happened when a surprising social experiment re imagined a popular old video game and exploded on the Internet.
The National - Scallops scarcityFeb 26, 2014 | 2:18The National Scallops scarcity Video
The National Scallops scarcity Feb 26, 2014 | 2:18Acidification of ocean waters off British Columbia is having an effect on marine life, and the businesses that depend on it
The National - Chris Hadfield unravels a space mysteryFeb 26, 2014 | 2:27The National Chris Hadfield unravels a space mystery Video
The National Chris Hadfield unravels a space mystery Feb 26, 2014 | 2:27Former astronaut Chris Hadfield explains the mystery of how an astronaut almost drowned in the blackness of space.
The National - 3D printers in Canadian librariesFeb 9, 2014 | 2:00The National 3D printers in Canadian libraries Video
The National 3D printers in Canadian libraries Feb 9, 2014 | 2:00Several Canadian libraries are using 3D printers to help visitors make their designs come to life.
The National - Stephen Hawking's black hole U-turnJan 29, 2014 | 2:32The National Stephen Hawking's black hole U-turn Video
The National Stephen Hawking's black hole U-turn Jan 29, 2014 | 2:32CBC science correspondent Bob McDonald on theoretical physicist Stephen Hawking's admission that his 40-year-old theory about black holes is probably wrong
The National - Canada's connected kidsJan 22, 2014 | 2:28The National Canada's connected kids Video
The National Canada's connected kids Jan 22, 2014 | 2:28Just how connected to the online world are Canadian kids? A new survey might surprise you.
The National - Chris Hadfield InterviewJan 20, 2014 | 13:37The National Chris Hadfield Interview Video
The National Chris Hadfield Interview Jan 20, 2014 | 13:37Peter Mansbridge sits down with Canadian astronaut Chris Hadfield to talk about life, the universe and what's really out there.

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