Articles on Time

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Lightning moves pretty quickly; would you call it instantaneous? Steven Vanderburg, NOAA

What exactly does ‘instantaneous’ mean?

An instant likely feels different to a person, or a redwood, or a gnat. What's infinitely small for one might be a whole lifetime for another – and that scale influences the choices we make.
Volunteers clean up after Hurricane Sandy. jim.henderson

Why money is an impoverished metric of generosity

There are few things Americans like more than lists and money, but ranking philanthropists on the monetary size of their giving distorts our understanding of generosity, argues one ethicist.
DSAC is prepping for a yearlong experiment to characterize and test its suitability for use in future deep space exploration. Jet Propulsion Laboratory

Why the Deep Space Atomic Clock is key for future space exploration

Measuring time is a crucial part of navigation – particularly in space, where exacting precision is called for. The DSAC is poised to make a change that will aid future deep space missions.
An unusual date that comes to us from the heavens. Date image via shutterstock.com

Leap day: fixing the faults in our stars

We will get an 'extra' day this year, February 29. Where do these quadrennial liberties with our calendar originate?
Tick tock, tick tock… You can’t hide from the molecular clock. www.shutterstock.com

Explainer: what is the molecular clock?

The molecular clock is helping us deepen our knowledge of evolution and completing the tree of life. But how does it actually work?
The difference between “real” time, measured by clocks, and our own sense of time can sometimes seem enormous. Seán Ó Domhnaill/Flickr

How did it get so late so soon? Why time flies as we get older

While few will dispute that a minute comprises 60 seconds, the perception of time can vary dramatically from person to person and from one situation to the next. Time can race, or it can drag.

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