The rumors were true! This morning leaders of the Laser Interferometer Gravitational Wave Observatory (LIGO) announced the first direct detection of gravitational waves. In honor of this momentous discovery, the Perimeter Institute in Waterloo, Ontario, is hosting a live webcast today at 1pm EST: “Ripple Effects: A…
Now you can watch as well as listen as world-renowned physicist Stephen Hawking expounds upon his latest ideas about the knotty black hole information paradox, playfully illustrated by chalkboard artist Andrew Park.
The Milky Way may have 13.6 billion years under its belt, but its stars range from newborns to ancients. Astronomers mapped how old the stars are, creating the first-ever age map of our galaxy—and this map could give us clues about how life in the Milky Way started.
In the starless void of intergalactic space, there are clouds of cosmic gas as old as the Milky Way. They produce no visible light, and they barely radiate heat. Now, for the first time, astronomers have determined their size. These shadowy structures are as big as galaxies.
A controversial experiment at Fermilab designed to hunt for signs that our universe may really be a hologram has failed to find the evidence it was seeking, the laboratory has announced.
Billions of years from now, the universe as we know it will cease to exist. The good news is, that gives us a lot of time to prepare, and maybe even figure out a way to cheat cosmic death. Here are some possible ways our descendants might survive a cosmological apocalypse.
The nuclear strong force binds the smallest bits of matter together to form atoms, thereby making our material world possible. Physicists at Brookhaven National Laboratory have made the first-ever measurement of a similar strong force for antimatter — the mirror image of regular matter that lies at the heart of one of…
Perhaps you saw the news this week about new evidence that we do, indeed, live in a multiverse. A scientist claims he’s found signs in the cosmic microwave background radiation — the afterglow, so to speak, from the Big Bang — that our universe collided with another universe early in our cosmic history.
You’ve heard it before: In space, no one can hear you scream. That’s because sound doesn’t move through a vacuum, and everyone knows that space is a vacuum. The thing is, that’s not completely true.
All eyes are currently on the upgraded Large Hadron Collider as it ramps up its hunt for new physics. But some physicists are already looking beyond and pinning their hopes on an even bigger machine, four times the size of the LHC. One of them is Nima Arkani-Hamed, the subject of a recent extensive profile by Natalie…
Have you ever wanted to meander between two spiral galaxies, or follow in the footsteps of a comet? Now visitors to southwest Scotland’s Nith Valley can do just that. Welcome to the “Crawick Multiverse,” a massive installation created by renowned landscape architect Charles Jencks that gives symbolic physical form to…
Astrophysicists at Caltech say they’ve detected the oldest, most distant galaxy known so far. It’s 13.2 billion years old — just over half a billion years younger than the universe itself — and the discovery may change what astrophysicists know about the early history of the universe.
“Space is big,” said Douglas Adams. “You just won’t believe how vastly, hugely, mind-boggingly big it is.” But why must this be so? And why does our Universe exhibit such tremendous scale, from the very tiny to the extremely large? Here are some possible answers.
According to the Many Worlds Interpretation of quantum physics, we live in an infinite web of alternate timelines. It's a serious claim that carries some rather serious scientific, philosophical, and existential baggage. And here are the nine weirdest possible implications.
Light speed is often spoken of as a cosmic speed limit … but not everything plays by these rules. In fact, space itself can expand faster than a photon could ever hope to travel.
We have yet to discover any signs of aliens, a troubling observation that has led to much speculation. One possible solution to the Great Silence is that nobody's out there. It's a conclusion that sounds impossible to believe, but there may be something to it. Here's why we may be alone in the universe.
According to modified general relativity equations, our universe may be inside a black hole, the black holes in our universe may contain other universes, and the black holes in those universes may contain other universes... I need a drink.
In October, NASA discovered the universe was sliding inexplicably toward, well, something massive. They called the phenomenon "dark flow," and it's but one example of the creepy, unexplained awesomeness that awaits humanity in space.