Posts by 

Deborah Byrd

When our sun dies, what will happen to Earth?

A study suggests our sun is about the lowest mass star that - when it dies - produces a visible, though faint, planetary nebula. What happens when our sun dies.

Aldebaran is Taurus the Bull’s fiery eye

Aldebaran, the brightest star in Taurus the Bull, is at one tip of a V-shaped cluster. If placed where our sun is, its surface would pass the orbit of Mercury.

2023’s most-illuminated quarter moon is tonight

Some quarter moons are fuller than others! The most-illuminated quarter moon of 2023 is on December 5. Learn more unique moon dates for 2024.

What moves the sailing stones of Death Valley?

At Death Valley’s Racetrack Playa, the sailing stones show signs of movement, etching trails in the dry lake bed. It was a mystery until quite recently.

How to see Earth’s shadow at sunrise and sunset

Just before sunrise and after sunset, you can spot Earth's shadow. Look west at sunrise and east at sunset. Learn more about Earth's shadow here.

Al Risha binds the Fishes of Pisces together

The star Al Risha in the constellation Pisces isn't bright. But it's at the tip of the graceful V in the constellation Pisces and it's very noticeable.

Edwin Hubble and the expanding universe

In 2018, the International Astronomical Union voted to rename Hubble's law as the Hubble–Lemaître law to share credit between Edwin Hubble and Georges Lemaître.

Wow! A rare waterspout over Sun Moon Lake, Taiwan

An EarthSky community member caught this rare waterspout over Sun Moon Lake on November 16, 2023. What a catch! Thank you, Bob!

Do we all see the same moon phase from Earth?

No matter where you are on the globe, we all see the same moon phase. So why do photos from a distant location sometimes look different from what you're seeing?

Lost tool bag from spacewalk caught on video

NASA astronauts accidentally lost a tool bag during a spacewalk on November 2. Now, observers on the ground have caught the tool bag on video. See it here.

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