Stay Curious

SIGN UP FOR OUR WEEKLY NEWSLETTER AND UNLOCK ONE MORE ARTICLE FOR FREE.

Sign Up

VIEW OUR Privacy Policy

Discover Magazine Logo

WANT MORE? KEEP READING FOR AS LOW AS $1.99!

Subscribe
RegisterORLogin

ALREADY A SUBSCRIBER?

FIND MY SUBSCRIPTION
Advertisement

The Moon sleighs me

Astrophotographer Alan Friedman spied something odd on the Moon, igniting discussions on flying reindeer and inertialess propulsion systems.

ByPhil Plait

Newsletter

Sign up for our email newsletter for the latest science news

Sign Up

One of my favorite astrophotographers, Alan Friedman, spied something odd on the Moon.

Flying reindeer I'll buy. But an inertialess propulsion system? C'mon. Happy holidays everyone! Credit: Alan Friedman

More on Discover
The Aztec Empire: Ruins of the Aztec pyramid in Teotihuacan
What Happened to the Aztec Empire? Lost Artifacts Help Rejuvenate Its Past
Meteor asteroid impact
Asteroid Ryugu Was Once Packed with Water, Offering Clues on Earth's Habitability
the JWST drifting through the cosmos
JWST Helps Examine Atmosphere of Exoplanet 40 Light Years Away and in the Goldilocks Zone
The Mount Tambora caldera in the morning mist
Mount Tambora Is Still Active, but It's Not Likely to Have a Devastating Eruption Again
Taylor Swift Eras Tour Concert, creating Swiftquakes
Fans at Taylor Swift's Eras Tour Generated SwiftQuakes — Seismic Waves Felt 60 Miles Away
cuneiform script
How the Mesopotamians Wrote About Their Feelings Gives Us Insight into Their Ancient World
Diverse language learning
Here’s How Language Changes Through Human Contact, According to Genetics
Phlegraean Fileds or Campi Flegrei
What Can We Learn from Campi Flegrei’s Explosive Past?
Shroud of Turin
700-Year-Old Medieval Document Is the Oldest Written Evidence to Claim the Shroud of Turin Is Fake
Jupiter
Jupiter Is 4.5 Billion Years Old and We Now Know This From Ancient, Cosmic Raindrops
Asteroid Bennu
Tiny Particles Reveal Asteroid Bennu's Origin Story at the Beginning of the Solar System
The Great Ziggurat of Ur
The First Civilization in Ancient Mesopotamia Thrived Thanks to Rivers and Tides

Stay Curious

JoinOur List

Sign up for our weekly science updates

View our Privacy Policy

SubscribeTo The Magazine

Save up to 40% off the cover price when you subscribe to Discover magazine.

Subscribe
Advertisement

0 Free Articles

Subscribe