What moon craters can tell us about Earth

Asteroid impacts have a bad reputation here on Earth — it’s the dinosaurs’ signature public relations victory — but it’s the moon that really bears the scars of living in our messy neighborhood. That’s because Earth has an arsenal of forces that slowly wear away the craters left behind by impacts. And that’s frustrating for scientists who… Continue reading What moon craters can tell us about Earth

What Are Skyrmions?

A skyrmion can be described as a swirling quasi-particle, a knot of twisting field lines, or a subatomic hurricane. They’re also one of the most difficult physics concepts for humans to understand. That’s because these nano-size disturbances are easiest to describe mathematically and, despite being known about for nearly 60 years, physicists have only recently… Continue reading What Are Skyrmions?