Posts by 

Deborah Byrd

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. What caused them was a mystery until recently.

Edwin Hubble born today 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.

Triangulum galaxy is 2nd-closest to Milky Way

The Triangulum Galaxy, aka M33, is the farthest object you can see with the unaided eye, if in fact you can see it. But seeing it is a challenge.

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.

Super Hunter’s Moon – 2025’s brightest full moon – on November 5-6

Watch for the Super Hunter's Moon - this year's November full moon - on November 5-6, 2025. It's the closest and brightest supermoon of 2025.

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?

Daylight Time ends Sunday: 7 tips to help you adjust

Daylight Time ends on November 2, 2025. Here are 7 tips from the American Academy of Sleep Medicine to help you adjust to the time change.

See brightest star, Sirius, in your morning sky

Out late at night or before dawn? Look for the sky's brightest star, Sirius, a brilliant beauty. You'll know it's Sirius if you see Orion's Belt pointing to it.

Proxima Centauri, the closest star to our sun

Proxima Centauri is the nearest star to our sun at 4.22 light-years away. It's home to at least 3 planets and has massive solar flares.

Spooky ghost lights: Believe them if you dare

Ghost lights are strange lights seen over swamps or bogs. Here are some popular places known for ghost lights. Believe in them ... if you dare!

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