posits that the Earth’s inner core may, in fact, have two distinct layers. "It's very exciting – and might mean we have to rewrite the textbooks!" Stephenson said at the time of the paper’s ...

A new book details how lignin once protected algae from UV radiation, then later in evolutionary time became a structural ...

You'd have a good reason to think that, too: it's how most textbooks show things. Indeed, many people assume Earth is closer to the sun in summer than in winter. As it happens, this is true during ...