Supermassive cosmic objects, such as black holes, are very difficult to study directly, but researchers can construct useful analogues in the laboratory using quantum effects. For example, researchers ...

Time is the strange dimension: Unlike its spatial siblings, it is a one-way street as the clock only ever ticks forward and never backward. Scientists have long been aware of time's quirks, with the ...

Oftentimes, we think of space as an endless, mostly empty vacuum, a silent backdrop where planets, stars, and galaxies play out their dance. We also think of time as something separate, a steady ...