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 a bright, steady point of light thats actually not a...

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...

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...

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...

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 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,...

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...

The Gemini Constellation: How to Find the Twins and Their Two Bright Stars

Some constellations ask you to squint and use your imagination. Gemini practically introduces itself....

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...

A Complete Guide to the Ara Constellation: The Celestial Altar

If you've ever spent a summer night scanning the sky south of Scorpius, theres...

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...

The Scorpius Constellation: How to Find the Scorpion and Its Fiery Red Heart

Here's a rare treat in astronomy. Most constellations look nothing like the thing they're...

What is Jupiter’s Distance from the Sun? Facts and Figures

Theres something almost hard to wrap your head around when you start comparing distances...

The Beauty of Great Comets: Images, Pictures, and Night Sky Wonders

Every once in a while, the night sky throws in something extra, a bright,...

The Taurus Constellation: How to Find the Bull, Its Red Eye, and Two Dazzling Star Clusters

Some constellations make you work to see the picture. Taurus practically hands it to...

Can Humans Live on Mars? Facts and Future Insights

Carl Sagan once said, "Somewhere, something incredible is waiting to be known." This quote...

Venus: Size, Distance From the Sun, and Its Backward Orbit

Venus is often called Earth's twin, and on paper, that nickname makes sense, its...

How Hot Is the Sun? A Layer-by-Layer Look at Our Star’s Blistering Temperatures

How hot is the sun? It depends entirely on which part you mean. The...

Planets

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 of stars is a water bearer or a sea goat, and you nod politely while seeing nothing of the sort. Leo is different. Leo actually looks like a lion. With...

What Is a Brown Dwarf? The Star That Never Quite Made It

Somewhere between a planet and a star sits a category of object that never...

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

Did you know our sun is just one of over 100 billion stars in...

The 8 Phases of the Moon Explained: A Simple Guide to Every Shape in the Lunar Cycle

Look up at the Moon a few nights in a row and something quietly...

How will life on Earth end?

Have you ever laid back on a warm summer night, looked up at the...

Space Missions

Can Humans Live on Mars? Facts and Future Insights

Carl Sagan once said, "Somewhere, something incredible is waiting to be known." This quote captures our fascination with the fourth planet from the Sun. Do...

How will life on Earth end?

Have you ever laid back on a warm summer night, looked up at the...

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...

Top 5 Space Discoveries of 2026 So Far You Can’t Miss

Last Tuesday, I sat on my back porch with a pair of binoculars, staring at the velvet night sky. It felt like a quiet evening, but I knew that miles above, humanity was busy rewriting the history books. The universe is constantly whispering secrets,...

See the Most Detailed Real Picture of the Sun’s Surface Ever Taken

Every so often, a new image comes along that completely resets what we thought we knew about something we've been staring at our entire...

Planet Earth

What Is Dark Matter and Why Can’t We See It Explained

Did you know that roughly 85 percent of the cosmos remains completely hidden from...

Astronomers Just Found Three Supermassive Black Holes Sharing One Galaxy

Most large galaxies host exactly one supermassive black hole at their center. A galaxy...

O’Neill Colonies: The Ultimate Concept for Space Settlement

Every so often a space idea comes along that sounds like pure science fiction...

What Is a Galaxy? Learn About Stars Planets and More

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

What Is a Brown Dwarf? The Star That Never Quite Made It

Somewhere between a planet and a star sits a category of object that never quite earned the title of either. Brown dwarfs form the same way stars do, but they never gather enough mass to fully ignite, leaving them stuck in a strange cosmic...

All Articles

What Would Happen if the Earth Stopped Spinning?

Right now, as you sit comfortably on your couch reading this on your phone...

Neptune at a Glance: Size, Orbit, and Solar Distance

Out on the chilly edges of our solar system sits a deep blue world...

Where Did the Term “Right Ascension” Originate, and Why Not Just Call It “Ascension”?

If you've ever tried picking up a telescope, downloading a stargazing app, or looking...

How will life on Earth end?

Have you ever laid back on a warm summer night, looked up at the...

How Fast is the Speed of Light?

Ever looked up at the stars at night and wondered how fast that light...

What Is the Mid-Atlantic Ridge?

There is a massive mountain range running through the Atlantic Ocean that most people...