Galaxy Chronicle

Supermoon: What It Really Is, Why It Happens, and When to Catch the Next One

A supermoon is a full moon that lines up with the Moon's closest approach to Earth, making it look a little bigger and noticeably brighter than an ordinary full moon. At its best, a supermoon can appear up to 14% larger and about 30%...

What Is a Constellation? A Beginner’s Guide to the Sky’s 88 Star Patterns

A constellation is a group of stars that forms a recognizable pattern in the night sky, one we've given a name, usually after a mythological figure, animal, or object. There are 88 of them officially recognized, and together they map out the entire sky....
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Keep exploring

How Many Galaxies Are in the Observable Universe?

Point the Hubble Space Telescope at what looks like a completely empty patch of...

What’s the Difference Between a Galaxy and a Solar System?

These two terms get mixed up constantly, and honestly, it's an easy mistake to...

How Many Moons Does Jupiter Have? The 2026 Count

Jupiter has 115 officially recognized moons as of August 2026, according to NASA and...

A Magnetar Just Gave Scientists the Best Evidence Yet That Empty Space Isn’t Really Empty

A quantum physics prediction sitting untested for 90 years may have finally found its...

What Is the Oort Cloud? The Solar System’s Icy, Invisible Edge

Beyond Neptune, beyond Pluto, beyond even the icy Kuiper Belt, scientists believe there's a...

What Causes the Aurora Borealis? The Science Behind the Northern Lights

Green curtains rippling silently across a dark Arctic sky look like pure magic, but...

What Is a Wormhole? Cosmic Shortcuts That Might Not Actually Exist

Science fiction loves wormholes, tunnels through space and time that let a ship skip...

Saturn: Size, Distance From the Sun, and Its Slow, Tilted Orbit

Saturn is the planet everyone recognizes instantly thanks to its rings, but the numbers...

Mars: Size, Distance From the Sun, and Orbit

Mars gets more attention than almost any other planet, and for good reason, it's...

What Is the Fermi Paradox? Where Is Everybody?

In 1950, physicist Enrico Fermi was having lunch with colleagues at Los Alamos, chatting...

Webb’s New Portrait of the Lion Nebula Just Dropped, and It’s Roaring

Five thousand light-years away, a dying star is carving a lion's face out of...

Europe Just Saw Its First Total Solar Eclipse Since 1999

On Wednesday, August 12, the Moon's shadow swept across Greenland, Iceland, and northern Spain,...

Latest articles

Supermoon: What It Really Is, Why It Happens, and When to Catch the Next One

A supermoon is a full moon that lines up with the Moon's closest approach...

What Is a Constellation? A Beginner’s Guide to the Sky’s 88 Star Patterns

A constellation is a group of stars that forms a recognizable pattern in the...

How Many Planets Are There? The Real Answer Is Bigger Than Eight

There are eight planets in our solar system: Mercury, Venus, Earth, Mars, Jupiter, Saturn,...

What Is a Galaxy? A Simple Guide to the Great Islands of Stars

A galaxy is an enormous collection of stars, gas, dust, and dark matter, all...