Dice are examples of so-called "rigid bodies," broadly defined as shapes that move as one solid piece, with no need for ...

Black holes are infamous for being invisible. But thanks to a new technique from the Event Horizon Telescope (EHT) team, ...

Astronomers with the Event Horizon Telescope have developed a new way to observe the radio sky at multiple frequencies, and ...

A remarkable aspect of this technology is its ability to project entirely different images depending on both the wavelength (color) and spin (polarization direction) of light. For example, ...

The streets of Hillbrow, a tough downtown Johannesburg district more famous for its hijacked buildings, poverty and raging ...