A spacecraft using Comet Hitchhiker orbits and lands on multiple comets and asteroids using a harpoon and tether and the energy of motion of the small bodies themselves.
New Horizons will perform four maneuvers in October and November to veer toward 2014 MU69 - an object in the Kuiper Belt - aiming for a January 1, 2019 encounter.
Researchers say these high-energy neutrinos come from sources beyond our Milky Way galaxy. They say the ability to discover them heralds a new form of astronomy.
A new explanation for the driving force behind ancient fire fountain eruptions on the moon. Plus ... do some volatiles on the moon and Earth have a common origin?
Why are sprites elusive? It doesn’t help that they flash on millisecond timescales. Also, they're above thunderstorms, usually blocked from view on the ground.