We looked at asteroid impacts and mass extinctions last week, focusing on the K/T “dinosaur-killing” extinction. In this second of a three-part series, we’ll try
The mineral group called zeolites is incredibly useful. It got its name back in the 1700s, when the Swedish mineralogist who also discovered nickel
Today, most of us think of Darwin in terms of evolution (this actually came much later in his career) and perhaps also the Galapagos Islands.
For drama, you can’t beat that one explanation of the K/T extinction: A giant asteroid smacks into the Gulf of Mexico, causing the equivalent of
NASA plans to catch an asteroid and tow it into orbit around the Moon. Whatever for? What are asteroids anyway? Won’t it crash into
What is salt? There are many ionic salts. What we think of as table or road salt is an ionic salt called sodium chloride