Using prisms of calcite crystals, researchers have developed a way to 'bend' light so that it appears to pass right through a three-dimensional object.
Stonehenge had a twin nearby made of timber, say archeologists who made the new discovery. But this dig was done with magnetometers, radar, and video game 3D technology.
Stonehenge wasn't the only mammoth circle in southern England 5,000 years ago. Using new radar imaging equipment, scientists have identified what was once a nearby circle of huge timbers.
Stonehenge archaeologists said Thursday they have uncovered the foundations of a second circular structure only a few hundred yards from Stonehenge.
Scientists say dark matter around many galaxy clusters is a flattened, cigar-like shape, rather than a rounded sphere.