How Large is the Universe?

The universe has long captivated us with its immense scales of distance and time. How far out does it stretch? Where does it end, and what lies beyond the star fields and the streams of galaxies that extend as far as telescopes can see? These questions are beginning to yield to a series of extraordinary […]

Scientists Just Fit Our Universe in a Box…Wait What

This is the universe in a box. Dark matter, supermassive black holes, galaxies, stars, magnetic fields—our universe, trapped in a cube. Well some of it, anyway. What this really is is our most advanced simulation of the universe and its evolution ever. This very impressive feat is the result of a project called Illustris—The Next […]

What If the Sun Was Twice Smaller

Hello, earthlings! I’m Alan, and I live in the same Solar System as you do. But the chances we’ll ever meet are almost non-existent since your and my Solar Systems exist in parallel worlds! And in my world, people do NOT live on Earth because our Sun is twice smaller than yours! What’s the connection? […]

The Dark Energy Survey Revealed New Origins of Stars in Our Galaxy

For years now, astronomers have been looking at the sky to try and find dark energy — energy that mathematically should exist, but that we’re not sure how to detect, or where to find. To detect the undetectable, scientists build increasingly sensitive telescopes and point them at the sky to do a survey. And one […]

What If There Was No Gravity for 1 Minute

Remember that unsatisfactory feeling as a kid when you’d try to jump in the air as high as possible, and something brings you back to the ground? Well, that “something” is your Mother. No wait, it’s everybody’s mother, which is Gravity. Like your mother, it’s always there, it never changes, and you can’t break it’s […]

What If Just One Planet Disappeared from the Solar System

Whazzup? My name’s Zid, and I’m from a planet in a place you call the Andromeda Galaxy. I’m in high school, and I have this assignment to find out what will happen to your solar system’s “perfect harmony” if it loses a planet! So, I poof one of yours away with this ray blaster and […]

Why There Is Light on Earth But Not in Space

If you’re not a morning person, then you’d probably love living on the moon or out in space! The whole “lack of oxygen” thing aside, a ‘round-the-clock night sky sounds pretty tempting! But that got me wondering… – Why is there so much light on Earth, but almost none once you leave our planet? You […]

Laniakea: Our home supercluster

Somewhere in the Universe is a small blue planet, the third rock from a star called the Sun, just one of billions of stars in a spiral galaxy known as the Milky Way. But where in the Universe is the Milky Way? A team of scientists gathered data on more than 8,000 of the galaxies […]

Venus May Have Been Habitable

Venus, the second closest planet to the sun, and Earth’s closest neighbor, is not a place where you’d want to spend your vacation. The atmosphere is corrosive, scorching-hot, and extremely toxic. But recently, scientists have discovered that millions of years ago, Venus was probably nothing like the uninhabitable, hostile world it is today! About 700 […]

Scientists Just Detected Two Supermassive Black Holes on a Collision Course

Supermassive black holes are thought to be at the center of most galaxies, and they are huge. The Milky Way’s own supermassive black hole, Sagittarius A*, is about 4 million times the mass of our sun. But scientists have just spotted two absolute behemoths, that dwarf Sagittarius A*, and they are on a collision course. […]