In a joint advance from the University of Pennsylvania and the University of Michigan, engineers have designed the smallest fully programmable autonomous robots ever built – ...
For decades, Uranus and Neptune have been filed neatly into the “ice giant” drawer, shorthand for worlds built mostly from ...
For more than a century, schoolbook physics has divided matter into neat categories like solid, liquid, gas, and plasma. A ...
Early Mars seems to have had a protective atmosphere and liquid water in the form of oceans, rivers, and lakes. It may also ...