Mars has an asteroid entourage, with nine so-called Trojans trailing in its wake. Now it seems these travelling companions all had the same violent beginning: as the innards of a mini-planet, eviscerated in a violent collision. Some remnants may even have been incorporated into the material that became Mars. Trojans are distinct from the asteroids found in the asteroid belt, which begins about 101 million kilometres past Mars and stretches toward Jupiter.
David & Debbie AndreasBlandin FoundationCarla BlumbergOtto Bremer TrustBurdick Family Fund of The Minneapolis FoundationBush FoundationCentral Corridor Funders CollaborativeBill & Sharon ClappSage & John CowlesJay & Page CowlesDavid & Vicki CoxToby & Mae DaytonJack & Claire DempseyEthics and Excellence in Journalism FoundationJill & Larry FieldGreat River EnergySam Heins & Stacey MillsThe Joyce FoundationTom & Marlene KayserKim & Garry KievesJohn S. and James L. Knight FoundationJoel & Laurie...
Here’s a new idea to save jobs in coal and steel country: Spin it into carbon fiber, a lightweight, sturdy building material. The pitch-black stuff derived from long-dead forests could become the backbone of spacecraft, airplanes, cars, and bikes. With a lightweight body, those vehicles would theoretically need less fuel to get moving — meaning fewer greenhouse gases polluting the atmosphere, despite more people back at work taking coal out of the ground.