Guest: Professor Dagomar Degroot, environmental historian at Georgetown University and author of Ripples on the Cosmic Ocean: An Environmental History of Our Place in

There's something big missing from our solar system — and that may be a good thing. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Planetary scientists recently simulated an alternate version of ...

Truly making Earth the centre of our solar system is going to take more than just fudging the maths. The sun is so much more massive than our puny planet that it is nearly impossible to force the former to orbit the latter, so our hosts Chelsea Whyte and ...

Spiral Galaxy from Kirkland et al. CREDIT Chris Kirkland and colleagues. A new study of zircon crystals from two of Earth’s oldest continents indicates that the formation of Earth’s continental crust goes through cycles, with periods of increased crust ...