Posts by 

Deborah Byrd

Happy May Day! Today is an astronomy holiday

Happy May Day! This annual celebration has its roots in astronomy as 1 of 4 cross-quarter days. Dancing around a maypole is a traditional May Day celebration.

Taurid meteors in 2026: All you need to know

You might see Taurid meteors from late October to early November. Expect up to 10 meteors per hour, and some of them might be fireballs.

Hercules is between 2 bright stars: Vega and Arcturus

The bright stars Arcturus and Vega can help you find the constellation Hercules and its Keystone asterism. Hercules is home to 2 fabulous globular clusters.

Here’s how to see the Lunar X and V at 1st-quarter moon

Lunar X and Lunar V are optical features on the moon. They are visible through a telescope for several hours around the time of the 1st quarter moon.

Summer solstice in Mars’ southern hemisphere is April 25

The summer solstice in Mars' southern hemisphere happens on April 25, 2026. Summertime there typically kicks off dust season on the red planet.

Happy Earth Day! Why do we celebrate it on April 22?

April 22 is the date of Earth Day in part because of Arbor Day, an earlier observance. The focus for 2026 is "Our Power, Our Planet."

March equinox 2027: Here’s all you need to know

Happy equinox! The 2027 March equinox falls on March 20 at 20:25 UTC (3:25 p.m. CDT). All you need to know about the March equinox here.

Universe’s expansion rate: ‘Something doesn’t add up’

We think we understand the local universe's expansion rate. But measurements confirm a mismatch that could point to a need for new physics.

Kochab and Pherkad: Outer bowl stars of the Little Dipper

Kochab and Pherkad are stars in the Little Dipper asterism. Maybe you can find the Big Dipper but not the Little Dipper? This post will help.

Coma Berenices: See how Leo the Lion lost his tail

Coma Berenices is the constellation of Queen Berenice's Hair. It used to be the tail of Leo the Lion before it became its own constellation.