Latest articles by Paul Sutter
What are wormholes?
Wormholes connect two points in space and time and are a staple of science fiction. But are they possible in the real universe?
What are cosmic rays?
Cosmic rays are tiny subatomic particles racing through the universe at nearly the speed of light — and they're not so nice.
What is a singularity?
There are places in the universe where our laws of physics simply break down. These are called singularities.
Who was James Clerk Maxwell? The greatest physicist you've probably never heard of.
Opinion James Clerk Maxwell is the scientist responsible for explaining the forces behind the radio in your car, the magnets on your fridge, the heat of a warm summer day and the charge on a battery.
Strange mathematical term changes our entire view of black holes
The behemoths exert a pressure on their surroundings, new research has found.
1st sign of elusive 'triangle singularity' shows particles swapping identities in mid-flight
Physicists sifting through old particle accelerator data have found evidence of a highly-elusive, never-before-seen process: a so-called triangle singularity.
Is dark matter made of 'Fermi balls' forged in the Big Bang?
A new theory suggests dark matter may have come from quantum bags that got squished together in the early universe.
What is multiverse theory?
Multiverse theory suggests we live in one of an infinite number of universes.
Traversable wormholes are possible under certain gravity conditions
Certain weird gravity conditions would make it possible to travel through a wormhole and back.
What can we do with a captured asteroid?
Asteroids are packed with gold and other valuable resources. And the best way to harvest those metals may be to bring space rocks to Earth.
Are there any black holes left over from the Big Bang?
Opinion What would a universe flooded with primordial black holes look like?
Could we really terraform Mars?
Opinion With its frigid temperatures, remoteness from the sun and general dustiness, changing Mars to be more Earth-like is more challenging than it seems (and it already seems pretty tough).
What is a superconductor?
A superconductor is a material that achieves superconductivity— a state of matter that has no electrical resistance and does not allow magnetic fields to penetrate.
Our universe might be a giant three-dimensional donut, really.
Astrophysicists say our universe might be shaped like a three-dimensional donut, meaning you could point a spaceship in one direction and eventually return to where you started.
Can we solve the black hole information paradox with 'photon spheres'?
Opinion Theories that attempt to resolve the so-called black hole information paradox predict that black holes are much more complicated than general relativity suggests.
Can we explain dark matter by adding more dimensions to the universe?
Dark matter could be even weirder than anyone thought, say cosmologists who are suggesting this mysterious substance could interact with itself in a higher dimensional universe.
What is the Milky Way?
Find out all the science of the Milky Way, including the size of our home galaxy, who discovered it and how it's on a collision course with another galaxy.
Did a dark energy discovery just prove Einstein wrong? Not quite.
The Dark Energy Survey just released its most comprehensive results. But did they really prove Einstein wrong?
Lost in space? Here's a new method to find your way back home.
Space is big — really big. And if you want to successfully navigate the interstellar depths of our galaxy, you're going to need some sort of reliable system.
Fluffy ball of darkinos could be lurking at the center of the Milky Way
The supermassive black hole in the center of our galaxy may not be a black hole at all, but rather a fluffy ball of dark matter called darkinos.
