News tagged with travel time

Time travel? Maybe

Imagine that you're a science-fiction writer on a tight schedule. You'd like to play in the vast expanses of the universe, but you have too much scientific integrity to conjure up a warp drive or a DeLorean out of thin air. ...

dateMay 11, 2010 in General Physics
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Moving through time

Although we can't technically travel through time (yet), when we think of the past or the future we engage in a sort of mental time travel. This uniquely human ability to psychologically travel through time arguably sets ...

dateJan 21, 2010 in Psychology & Psychiatry
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A laser beam's path through NASA's ICESat-2

Before beaming 300 miles to Earth's surface, bouncing off the ground and travelling another 300 miles back into space, the laser photons on NASA's Ice, Cloud and Land Elevation Satellite-2 first have to complete ...

dateJun 17, 2015 in Space Exploration
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What makes us human?

What separates humans from other animals, including our closest relatives? It's one of those big questions perennially posed by the evo-curious public. But until recently I seldom gave it much thought. Mostly ...

dateJun 03, 2014 in Evolution
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