Bringing down the trash
The density of junk orbiting the Earth is at or near a critical value beyond which this man-made debris will…
Writings
Meat from scratch
If all goes according to Mark Post’s plan, he will appear on television in October and devour a hamburger…
Interrupting cancer’s travel plans
Randy Watnickʼs pursuit of a better drug against metastatic cancer began late at night in early 2005. His infant daughter…
Flipping Icebergs
Icebergs look like towering, frozen mountains that drift through water. Their peaks may soar hundreds of feet above the surface…
Descartes’ Decipherer
Erik-Jan Bos, a philosopher at Utrecht University in the Netherlands, unearthed research gold with an Internet search. In putting together…
You can’t copyright pi
The mathematical constant pi continues to infinity, but an extraordinary lawsuit that centred on this most beloved string of digits…
Worlds beyond the solar system
Once upon a time — about 20 years ago — kids in school learned about nine planets: Mercury, Venus, Earth,…
Graphene Girl Scout Cookies
It's cookie season! Can the Girl Scouts revolutionize electronics? Find out by listening to this podcast from the Loh Down…
Moon twinkles
If you ever travel to the moon, don’t forget to pack a heavy-duty umbrella. It’s not for downpours: With no…
Mapping the invisible
Most maps show places you can visit and how to get there. Most maps, however, were not made by astronomers…