Perhaps you’re familiar with the strangeness of supercooled water: It stays liquid well below water’s freezing point until you give it a whack, and bam, it suddenly turns into solid ice. You’re probably less familiar diketopyrrolopyrrole (DPP) derivatives, which has similar but also odder properties.
The internet is awash with news that NASA's Curiosity Mars rover has detected carbon compounds on Mars. Some people may have you believe that the news suggests there's life on Mars—but don't get too excited just yet.
Decades after scientists said NASA's Mars missions had found inconclusive evidence of organic compounds on Mars, a new study says not only are there organics on Mars, but Viking found them back in the 1970s, and scientists completely missed them.