Medicine & TechnologyScientists have discovered four new species of "walking" sharks. Watch how the adorable creatures "walk" on the seabed instead of swim.
A long time ago, when people stared in the sky. Sometimes they'd spy bright specs of light. Some thought they were angels or the gods dashing through the sky. In time, early astronomers developed spyglasses and telescopes with improved optics.
By designing power sources that give robots the ability to function for more extended periods, researchers think autonomous robots could soon be roaming the Earth’s oceans on vital scientific missions and for delicate environmental tasks like sampling coral reefs