Bus and train schedules can disappoint, but eclipses always happen right on time. They offer a glimpse into the great celestial clockwork that ticks away day by day, century by …
Since the dawn of humanity, solar eclipses have sparked awe and wonder — and sometimes fear. “Imagine you’re a farmer—you’re out there, and all of a sudden sky goes dark,” …
Astronomers are excited about the Habitable Worlds Observatory — a new telescope that may finally reveal whether life exists on worlds beyond our solar system. The Habitable Worlds Observatory won’t …
In the February issue of Sky & Telescope, I have a feature story on DESI, an ambitious project that’s mapping the universe in three dimensions and producing our clearest picture …
Cosmic strings are thinner than a proton and yet stretch across the universe, while zipping through space at close to the speed of light — if they exist, that is. …
Robert Sapolsky has just written a book arguing that free will is an illusion. Kevin Mitchell has just written a book arguing that free will is absolutely real. In this …
I’m honoured to have an asteroid named after me! Thanks to the efforts of Peter Jedicke and others at the Royal Astronomical Society of Canada, a small asteroid orbiting the …
A century ago, a U of T astronomer led a small group of Canadians on a daring expedition to Australia to test Einstein’s Theory of General Relativity. Read my feature …
