Aurora Australis: The Southern Lights, Nature’s Glowing Show at the Bottom of the World

Almost everyone has seen photos of the Northern Lights, those rippling green curtains that draw travelers to Iceland, Norway, and Alaska every winter. Far...

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....

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...

What Is Dark Energy? A Friendly Guide to Cosmic Mystery

Did you know that everything we can see in the entire cosmos makes up...

The Colors of the Planets: What Are They and Why Do They Vary? planet colors

If you line up high resolution photos of all eight planets in our solar...

How Far Is the Sun From Earth? The 93-Million-Mile Answer and Why It Keeps Changing

The Sun sits an average of about 93 million miles (150 million kilometers) from...

How Old Is the Universe? The 13.8-Billion-Year Answer and How We Measured It

The universe is about 13.8 billion years old. More precisely, 13.787 billion years, give...

How Many Moons Does Jupiter Have Latest Count 2024

I remember looking through a telescope in my backyard as a kid. I felt amazed when I saw Jupiter's bright light. Back then, we...

How Many Moons Does Saturn Have? The Number Keeps Climbing

If you learned your solar system facts in school anytime before the last couple...

What Is the Milky Way Galaxy? Everything You Need to Know

Have you ever looked up at a clear night sky and wondered about our...

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,...

Galaxies & Deep Space

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...

How Far Is the Sun From Earth? The 93-Million-Mile Answer and Why It Keeps Changing

The Sun sits an average of about 93 million miles (150 million kilometers) from...

How Far Is the Moon From Earth: The Real Distance and Why It Keeps Changing

The Short Answer On average, the Moon sits about 384,400 kilometres from Earth, which is...

How Vast Is the Universe? Discovering Exactly How Space Is Big

Try, just for a second, to actually picture the size of the universe. Most...

How Many Galaxies Are in the Observable Universe?

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

Regulus Star: The Little King at the Heart of Leo the Lion

Look toward the constellation Leo on a spring evening and you will find a...

Is the Moon a Planet: Why Our Nearest Neighbour Doesn’t Make the Cut

The Short Answer No, the Moon is not a planet. It's a natural satellite, which...

Understanding Jupiter: Size, Orbit, and the Distance from the Sun to Jupiter

Look up on almost any clear night and theres a decent chance you'll spot...

101 Must-See Cosmic Objects: The Dumbbell Nebula

Some deep sky objects take a serious telescope, a dark sky reservation, and a...

The Black Hole That Was Never Supposed to Be Found

It was a Saturday in November 2025 when an algorithm flagged something strange in...

Perseid Meteor Shower 2026: Peak Time and Viewing Tips

If you enjoy stepping outside on a warm summer night and watching the sky,...

Planets

How Many Moons Does Jupiter Have Latest Count 2024

I remember looking through a telescope in my backyard as a kid. I felt amazed when I saw Jupiter's bright light. Back then, we thought we knew the solar system well. But space science keeps moving fast. Now, scientists use new tech to explore space....

What Is a Magnetar? The Strongest Magnets in the Universe

Somewhere out there sits a stellar remnant so magnetically powerful it could, in theory,...

When Is the Next Solar Eclipse: Your Guide to the Ring of Fire and the Eclipse of the Century

The Short Answer The next solar eclipse is an annular "ring of fire" on February...

What Is the Surface of Venus Like? The Hottest, Most Hostile World in the Solar System

From here on Earth, Venus is a thing of beauty. It's the dazzling "morning...

Liquid Nitrogen Is Flowing on Pluto: The First Sign of Recent Liquid on the Dwarf Planet’s Frozen Heart

Pluto sits so far from the Sun that sunlight takes more than five hours...

Space Missions

What Are Saturn’s Rings Made Of? The Icy Truth Behind the Solar System’s Most Famous Feature

Ask a kid to draw a picture of a planet and theres a solid chance they'll draw Saturn, rings and all, before any other...

What Is the Surface of Venus Like? The Hottest, Most Hostile World in the Solar System

From here on Earth, Venus is a thing of beauty. It's the dazzling "morning...

How Far Is the Sun From Earth? The 93-Million-Mile Answer and Why It Keeps Changing

The Sun sits an average of about 93 million miles (150 million kilometers) from...

What Is the Speed of Light?

Light is one of those things we see every day without really thinking about how strange it is. You turn on a lamp and the room lights up almost instantly. You look at the Moon and you are actually seeing it as it was...

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, Uranus, and Neptune. That's the answer most people are after,...

Planet Earth

How Do Space Suits Protect Astronauts and Save Lives

"Exploration is in our nature. We began as wanderers, and we are wanderers still,"...

What Is a Galaxy? Learn About Stars Planets and More

Imagine standing in your backyard on a clear, moonless night. You look up and...

How Many Black Holes Are Actually in the Milky Way?

Roughly one in every thousand stars in the Milky Way is massive enough to...

The Orion Nebula (M42): A Stellar Nursery You Can See With Your Own Eyes

Most of the jaw-dropping objects in deep space are hopelessly out of reach. You...

What Are Saturn’s Rings Made Of? The Icy Truth Behind the Solar System’s Most Famous Feature

Ask a kid to draw a picture of a planet and theres a solid chance they'll draw Saturn, rings and all, before any other world in the solar system. Its the single most recognizable feature belonging to any planet out there, but ask most...

All Articles

The 8 Phases of the Moon Explained: A Simple Guide to Waxing, Waning, and Everything in Between

Almost everyone has looked up at some point and wondered why the Moon keeps...

How Do Black Holes Form: The Violent Death That Gives Birth to the Universe’s Darkest Objects

There's a star in the Andromeda galaxy that simply vanished. Astronomers had been watching...

The Taurus Constellation: How to Find the Bull, the Fiery Star Aldebaran, and Two Famous Star Clusters

Some constellations are quiet and subtle. Taurus is not one of them. This is...

The 12 Zodiac Constellations: The Real Astronomy Behind the Star Signs

Everyone knows their star sign. It's on birthday cards, dating profiles, and the back...

The Leo Constellation: How to Spot the Lion of the Spring Sky and Its Bright Star Regulus

Most constellations take a generous imagination to see. Someone tells you a random scattering...

The Big Dipper: How to Find Ursa Major’s Famous Seven Stars and Use Them to Read the Whole Sky

Ask almost anyone to point out a star pattern, and there's a good chance...