Rachel Feltman

Washington, D.C.

Latest from Rachel Feltman

No, turkey doesn’t make you sleepy: the science of Thanksgiving feasts

Americans are preparing to knuckle down and stuff their faces, come what may. But what does this delicious debauchery do to your body?

November 20, 2021

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

These charming little primates share Madagascar with people desperate for wood and food.

March 27, 2019

Ever wondered whether yawns are contagious?

They are, but scientists are still trying to figure out why.

March 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.

January 13, 2019

Ever wondered why days get shorter as winter nears?

The tilt of the Earth helps explain it.

December 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.

November 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.

November 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.

October 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.

September 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.

August 13, 2018