Could the Earth be swallowed by a black hole? – TED Talk by Fabio Pacucci

From asteroids capable of destroying entire species to supernovae that could exterminate life on Earth, outer space has no shortage of forces that could wreak havoc on our planet. But there’s something in space that is even more terrifying than any of these — something that wipes out everything it comes near. Continue reading

Chris Hadfield says Mars missions pose psychological challenges

Chris Hadfield says the psychological ramifications of being so far from Earth will play a big part in missions to Mars. Some of Canada’s current and former astronauts spoke at an event at the University of Ottawa on Friday.

Source: Chris Hadfield says Mars missions pose psychological challenges

How do cigarettes affect the body? – TED Ed by Krishna Sudhir

Cigarettes aren’t good for us. That’s hardly news — we’ve known about the dangers of smoking for decades. But how exactly do cigarettes harm us, and can our bodies recover if we stop? Krishna Sudhir details what happens when we smoke — and when we quit. Lesson by Krishna Sudhir, directed by TED-Ed. Continue reading

Survey highlights tensions in public attitudes toward science – Globe and Mail

Three out of four Canadians agree that science and technology are needed to solve the critical challenges the world is facing. Yet, three in five also say that society is “turning away” from science in favour of ideas that are not grounded in evidence or data. Continue reading