
The Face on Mars and Other Cases of Cosmic Pareidolia
The human brain loves seeing patterns, even when they aren’t really there

The Face on Mars and Other Cases of Cosmic Pareidolia
The human brain loves seeing patterns, even when they aren’t really there

What Are Constellations, and Where Do They Come From?
Cosmic happenstance and biological evolution come together to create a road map to the stars

Stunning New Images Show Bright Future for Euclid, a Telescope Studying the ‘Dark’ Universe
The latest images from Euclid, a European mission studying dark matter and dark energy, are spectacularly beautiful—and scientifically promising

Smartphone Cameras Owe Their Power to Astronomy
The next time you snap a selfie, consider thanking an astronomer for your phone’s camera

The North Star Has an Age-Defying Secret: Stellar Cannibalism
The iconic star Polaris appears to be much younger than its true age. The secret: it’s eating another star

Surprising Supernova Scars Cover the Earth
A supernova showering Earth with radioactive debris is a surprisingly common cosmic occurrence

How Can You ‘See’ a Black Hole?
How do astronomers find the darkest objects in the universe?

Don’t Panic—At Least, Not about a Nearby Supernova
An exploding star is a catastrophe on a cosmic scale, but here on Earth we’re safe from such astral disasters—for now

Where Is the Edge of the Solar System?
The solar system’s outer limits aren’t as clear-cut as you might think

The Threat of a Solar Superstorm Is Growing—And We’re Not Ready
Someday an unlucky outburst from our sun could strike Earth and fry most of our electronics—and we’ve already had some too-close-for-comfort near misses

How to See the Lunar Far Side Right Here on Earth
Perspective and subtle motion allows us to peek over the moon’s edge and into its far side

How Tides Move Heaven and Earth
The ocean’s twice-daily rise and fall is only the most obvious effect of tides—they slow Earth’s spin and shape stars and galaxies, too