Latest from Rachel Feltman

Charisma alone can’t save the blue-eyed black lemur

These charming little primates share Madagascar with people desperate for wood and food.
  • Mar 27, 2019

Ever wondered whether yawns are contagious?

They are, but scientists are still trying to figure out why.
  • Mar 17, 2019

On frigid days, why does it sometimes rain instead of snow?

Temperature isn’t the only factor in determining what will fall from the sky.
  • Jan 13, 2019

Ever wondered why days get shorter as winter nears?

The tilt of the Earth helps explain it.
  • Dec 10, 2018

We often call a virus a bug. Does that mean it’s alive?

It shows signs of life, but scientists don’t agree on whether it’s alive.
  • Nov 18, 2018

Ever wondered what’s on the astronauts’ menu?

NASA provides about 200 choices on the space station, but travel to Mars poses new challenges.
  • Nov 7, 2018

How sugar transforms into a variety of tasty treats: A short and sweet explanation

Candy chemistry explains how simple sucrose can be chewy, hard or fluffy.
  • Oct 14, 2018

Plastic straws are little, but they are part of a huge problem

They’re too small to be recycled, so they end up in the landfill by the millions.
  • Sep 9, 2018

What’s that smell? For some animals, their stink helps keep them alive.

Vultures and possums are two creatures that use foul odors to their advantage.
  • Aug 13, 2018

Ever wondered what’s floating around in space?

There’s plenty of useless junk circling the planet, thanks to humans.
  • May 13, 2018