Saturday July 15, 2017
Why don't we have potato-shaped planets?
more stories from this episode
- Drumming birds lay down a wicked beat to impress the ladies
- Future forest fires will be more frequent, bigger, and harder to control
- Brain training apps won't make you smarter
- Scientists scouring southern Canada for Zika-carrying mosquitos
- Toxins from Greenland's melting ice may be cleaned up by bacteria
- Whiskey-sipping artificial tongue has a taste for the good stuff
- Why don't we have potato-shaped planets?
- Full Episode
This week our question comes from Martine Dennis, a listener in Orillia, Ontario. Martine emailed us with a question about the shapes of objects in space.
Are all planets and planetoids spherical? If so, are there stages t becoming spherical? Does dark matter "push" everything into spheres, or are the particles "pulled" together by the force of gravity?
To answer this question we reached Dr. Ray Jayawardhana, a professor of physics and astronomy at York University