How Dark Energy Changed Cosmology Forever
Let’s rewind the clock back…oh, I don’t know, let’s say a hundred years. It was 1917, and Einstein had just developed his general theory of relativity...
Space Science Articles
Explore the cosmos through in-depth articles about astronomy, astrophysics, and space exploration
How Three Runaway Stars Solved A Galactic Mystery
All motion is relative. That simple fact makes tracking the motion of distant objects outside our galaxy particularly challenging. For example, there ...
The Andromeda Galaxy Quenches Its Satellite Galaxies Long Before They Fall In
Astronomers know that mergers play a huge role in galaxy growth. Right now, the Milky Way is slowly consuming the Large and Small Magellanic Clouds. T...
What's Driving Dark Energy?
To be fair, all scientific models are in some sense wrong. They’re all approximations of reality. They’re all mathematical models that we use to descr...
Hunting For "Wnadering" Black Holes In Dwarf Galaxies
Tracking down black holes at the center of dwarf galaxies has proven difficult. In part that is because they have a tendency to “wander” and are not l...
Searching For Exoplanets In The Remnants Of A Dwarf Galaxy
Our search for exoplanets is focused on Milky Way stars. It's been successful, with more than 6,000 detected so far. Scientists are even beginning to ...
Capturing A Supernova Explosion Only Hours After It Began
The details of a supernova explosion are still clouded in mystery and subject to vigorous debate. What exactly happens when they explode? What underly...
Sunday Night Doubleheader: Catch the 2025 Leonid Meteors and an Aurora Encore
Keep an eye on the sky early Monday morning for the Leonid meteors, and a possible second auroral storm. Once every other generation, the Lion roars. ...
Remember That Paper Claiming The Universe Is Decelerating? Here's What A Nobel Laureate Has To Say About It
This is Part 4 of a series on a recent study claiming the Universe is decelerating. You can read Part 1 , Part 2 , and Part 3 here. So I got an email ...
Astronomers Detect the Early Shape of a Star Exploding for the First Time
Conventional wisdom has it that stars keep their spherical shape because of the careful balance between gravitational pressure and the internal pressu...
Cosmic Dust Bunnies - Why the Universe Might Be Fluffier Than We Thought
Space dust provides more than just awe-inspiring pictures like the Pillars of Creation. It can provide the necessary materials to build everything fro...
The Archeologist's Guide To Colonizing Other Worlds
Models help scientists understand everything from the particles that make up the universe to massive superstructures of galaxies at the beginning of t...