Two little robots have touched down on Mars, ready to study the planet’s rocks and soil.
To attract a mate, male bowerbirds go for a cheaper, low-key look instead of showy decorations.
By learning how mussels stick, scientists may find a way to make them come unstuck.
A closeup visit by a NASA spacecraft helps show how a comet gets its shape.
Mad cow disease has appeared in the United States, but scientists say it can be contained easily.
Enormous dinosaurs might have balanced on their front feet when wading in shallow water.
Medicine-delivering microchips implanted in the body could replace some injections and pills.
Fossil bones hint that sea-level increases doomed Atlantic albatross populations.
Prehistoric sailors may have traveled from island to island across the ocean.
Turning a bicycle into a blender, and making it go faster and farther with less effort.