Posts by 

Deborah Byrd

See 3 small constellations near the Summer Triangle

You need a dark country sky to see these 3 small constellations: Vulpecula, Delphinus and Sagitta. They are all near the Summer Triangle.

What is a planet? Jean-Luc Margot wants a new definition

What is a planet? Under the 2006 definition for "planet," Pluto lost full planet status. Learn about a proposed new definition.

Astronomer Michael Brown: ‘I killed Pluto. Now I’m searching for Planet 9’

Cool astronomy livestream on Monday, July 14! EarthSky's Deborah Byrd will be talking with astronomer Michael Brown, who calls himself "the man who killed Pluto."

World Population Day 2024 is today, July 11

Today is World Population Day, organized by the UN and observed on July 11 every year. This year's theme is "To leave no one behind, count everyone."

Coathanger cluster: This star pattern looks like its name

The Coathanger cluster resembles its namesake and is easy to spot with binoculars, using the star Albireo - part of the Summer Triangle - to find it.

Hurricane Beryl regaining strength, heading to Texas

Tropical storm Beryl - predicted to become Hurricane Beryl before it makes landfall - is now in the Gulf of Mexico, heading toward the Texas coastline.

Chinese rocket accidentally blasts off, then crashes

A Chinese rocket was undergoing a static fire test on Sunday, June 30, 2024, when it suddenly broke free of its hold-down clamps and launched.

Asteroid Bennu sample suggests an ocean world origin

Analysis of the asteroid Bennu sample delivered to Earth by NASA’s OSIRIS-REx mission shows a type of rock mirroring that found at Earthly mid-ocean ridges.

The End of Everything, LIVE, with Katie Mack

Join EarthSky's Deborah Byrd and theoretical cosmologist Katie Mack at 17:15 UTC (12:15 p.m. Central) on Monday, June 24, as they discuss the end of everything!

Meet an omega sunset and sunrise

An omega sunset or sunrise is an inferior mirage. It's produced by a layer of warmer and less dense air close to an ocean surface.