On Earth, crumbs are harmless, but in orbit they can be perilous. But bread is a big deal in Germany, so scientists and engineers there are teaming up to create an oven and dough fit for microgravity.
A black hole with about 17 billion times the mass of our sun has turned up in another remote galaxy. Astronomers now think these mass-eating monsters may not be so rare after all.
Something very big, out beyond Neptune, is warping the orbits of small, icy objects circling our sun. Astronomers haven't seen it yet, but say the culprit could be a planet with 10 times Earth's mass.