To touch grass, venture outdoors and take a break from doom-and-gloom news, what can one do to pass the time without a smartphone? Perhaps they can take a peek into the infinitesimal world outside ...

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It’s relatively easy to understand how optical microscopes work at low magnifications: one lens magnifies an image, the next magnifies the already-magnified image, and so on until it reaches the eye ...

For centuries, biological imaging has relied on dyes and fluorescent labels to visualize cellular structures -- a practice that not only alters samples but can delay critical medical decisions.

Try searching for your own micrometeorites by collecting particulates from roofs or drain spouts. Use a magnet to see if any particles are attracted, and discard nonmagnetic ones. Use your microscope ...