Posts by 

Larry Sessions

Significant auroras predicted for tonight

Reports from NOAA and elsewhere predict a chance of significant auroras, possibly observable as far south as the northern U.S. and maybe even farther south.

Impress your Valentine with these February full moon names

Wolf Moon, Snow Moon, Hunger Moon and more names for February's full moon in this post. Star near the moon is Regulus.

Predawn moon above the Scorpion’s Stinger on March 5

On the morning of March 5, the moon passes two stars in the tail of the constellation Scorpius. They are sometimes called The Stinger.

Making sense of astronomical misconceptions

Shortly after posting my last blog, I was abducted by aliens who flew me to Thermoman's home planet of Ultron where I was taught secrets of the universe.

Listening to astronomy

It used to be you had to take classes, or be in the right place to hear a lecture on astronomy. Now there are many resources for hearing astronomy podcasts online.

Stars are really dim!

The brightest star in the sky, Sirius, is about as bright as a 100-Watt incandescent light bulb viewed from a distance of more than 5 miles. Stars are really dim.

Ten more things you may not know about the solar system

Here is a collection of ten more things unknown or misunderstood facts about our solar system - our sun and its family of planets.

Groundhog Day: Seeing dubious connections

On Groundhog Day EarthSky blogger Larry Sessions says that, whether it's groundhogs or sunspots evidence is more important than belief.

Measure the sun! Here’s how to do it

You can measure the sun with a ruler, tape measure and a small mirror. Yes, the actual size of the sun! You'll need a little math, but it's a great school project.

A Christmas story… and a warning!

Christmas story about Clay Sherrod. Clay has been a strong force for the promotion of astronomy as the "People's Science" and the education of the public about the Universe.

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