Posts by 

Editors of EarthSky

Could you drive fast enough to keep a sunset in view?

Is it possible to see an endless sunset? The answer depends on the speed of Earth's rotation and your precise location on the globe.

What causes the hiccups?

You might get hiccups if you laugh too hard, or eat spicy food, or if your stomach becomes bloated. And everyone has a favorite hiccup remedy.

Stars, how big can they get?

The theoretical size limit for the biggest stars keeps going up! We know of stars between between 60 and 100 times as massive as our sun.

Reflective crops may curb global warming

How leaves are arranged in the canopy can make a big difference as to how much sunlight is reflected back from the reflective crops.

EarthSky launches new websites

Both EarthSky websites - in English and Spanish - feature issues important to people in the 21st century, plus leading scientists speaking about solutions.

Are jellies taking over?

The news and blogs are full of doom-and-gloom stories of (jellies) jellyfish and stingrays are very thick and taking over the oceans.

Deborah Byrd on EarthSky’s vision

You've heard the familiar voice of Deborah Byrd on the radio for 30+ years. Hear EarthSky founder and veteran science communicator talk about EarthSky's vision.

Paula Schnurr: ‘15% of Iraq soldiers may have PTSD’

Paula Schnurr says war veterans have always suffered post-traumatic stress disorder (PTSD), and how to help veterans process their experiences to ease symptoms.

Energy from cellulose: The promise and peril

We're far away from the day when cornstalks and switchgrass will yield enough fuel at a reasonable cost to make a difference in the energy economy.

Rod Heelis: ‘Space storms disrupt GPS, satellite signals’

Rod Heelis on the clarity of satellite radio and GPS signals depends on the ionosphere. Storms in space can interfere with and disrupt earthly communications.