Writer Fuel: A Martian Crater May Be Teeming With Opals
An ancient, dried-up lake bed on Mars may be teeming with opal gemstones, new data from NASA’s Mars Curiosity rover suggests. Beyond giving the cracked surface of Mars’ Gale Crater a semiprecious glint, these opals could be evidence that water and rock have been interacting beneath the Martian surface much more recently than was previously … Read more
