Can your breath actually turn into a solid and fall to the ground in extreme cold?
For the answer we turn to Chris Emond, a meteorologist with Environment Canada's weather office in Vancouver.
Why do storms on other planets, like Jupiter, last for hundreds of years while storms here on Earth only last weeks?
Our answer comes from Dr. Victoria Hipkin, Program Scientist for Planetary Exploration, with the Canadian Space Agency.
Why do Harbour seals consistently leave the land and dive back into the water when they see a killer whale, while sea lions go further inland? Dr. Lance Barrett-Lennard, Head of the Cetacean Research Program at the Vancouver Aquarium, answers this question.
How did we get here before the light and other radio waves from the Big Bang, which was 13 billion years ago? We ask Dr. Cristine Clement, Professor Emerita of Astronomy and Astrophysics at the University of Toronto.
Which freezes faster -- hot or cold water? Dr. Jan Kycia, an assistant professor of Physics, at the University of Waterloo has the answer.
Does the fossil record contain any information about the impact on flora and fauna from a reversal of the earth's magnetic field, and what would be its impact on climate?
Dr. Ann Lise Norman, associate professor of Physics and Astronomy at the University of Calgary helps us with the answer to this question.
If dimples on golf balls allow them to go faster and farther, why not put dimples in ships' hulls, and the outer surface of aircraft?
We ask Dr. Alidad Amirfazli, associate professor and Canada Research Chair in Surface Engineering at the University of Alberta.
If a person infected with an illness like Hepatitis or AIDS uses a needle and it is discarded, how long is the needle dangerous for? What about other germs, like the flu virus or the common cold virus, on such things as doorknobs?
For the answer, we go to Dr. Nathalie Bastien, a research scientist with the Public Health Agency of Canada.
If it's true that the Earth's mass is increasing all the time though the arrival of 40-thousand tons of cosmic dust a year, could it be that gravity was weaker during the time of the dinosaurs? Dr. Russell Redman, from the National Research Council's Dominion Astrophysical Observatory in Victoria, BC, gives us the answer.
Do fish get itchy? We ask Dr. Robert Dunbrack, associate professor of Biology at Memorial University of Newfoundland.
CBC's Rewind takes a look at space travel predictions since 1946. Listen to great clips from the CBC Radio Archives, with new commentary from Bob McDonald, about where space exploration should have taken us by now.