Animals have evolved to sleep in extreme ways — for example, taking micro naps during parenting, sleeping on the wing during ...

If there's any franchise that's perfectly set up to explore time travel, it's "Star Trek." These episodes are top-rated by ...

Time feels like the most familiar thing in the world, yet it hides one of physics’ hardest questions: why do we only remember ...

Time travel has shifted from pure fantasy to a serious, if highly constrained, topic in modern physics. The equations that ...

"A three-body problem is extremely complicated. Now we're dealing with four: the sun, Earth, the moon and Mars. The heavy lifting was more challenging than I initially thought." When you purchase ...

Tracking time is one of those things that seems easy, until you really start to get into the details of what time actually is. We define a second as 9,192,631,770 oscillations of a cesium atom.

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 ...

Did you know that moving a clock one inch toward the ground would result in a slower tick compared to the same clock positioned higher up? Gravity doesn't just pull things; it also bends time.

Two things often happen at the same time in a busy kitchen: plates clatter into the dishwasher and a mental note pops up that the soap dispenser is running low. The brain keeps both thoughts alive for ...