Describing the movement of objects in 3D space requires an understanding of mathematics. ' Moving Objects in 3D Space ' is a website that uses animated slides to explain how to mathematically ...

Using ultra-fast laser pulses and special cameras, scientists have simulated an optical illusion that appears to defy Einstein's theory of special relativity. One consequence of special relativity is ...

Scientists using a global array of radio telescopes have detected the universe’s lowest-mass dark object by observing how it warped light through gravitational lensing. The invisible mass, about a ...

Behind the Sun, the comet appears to show signs of acceleration beyond what is expected by gravity. And for reasons not yet ...