The Sun will eventually become a red giant star, swallowing Mercury and Venus in the process. But what will happen to Earth? There are a few existential questions we can ask […]
While the world considers future trips to Mars, two astrophysicists make a case for exploring asteroids.
Searching for truth in unorthodox ways can be a valuable exercise. But Anatoly Fomenko's alternate world history is just plain weird.
The psychology of alien contact largely revolves around the concept of "otherness." We need to learn to be comfortable around strange things.
First drawn in 1935, Hu Line illustrates persistent demographic split – how Beijing deals with it will determine the country's future.
Physics demands that it couldn’t be any other way. Here’s why. Ask anyone — even someone with no background in science — to name something that Einstein did, and odds are they’ll come back with […]
It doesn’t have to be a science-fiction dream. For as long as human beings have been watching the night sky, we’ve dreamed of visiting other worlds and truly seeing what’s […]
A candidate Higgs event in the ATLAS detector. Note how even with the clear signatures and transverse tracks, there is a shower of other particles; this is due to the […]
For years, astronomers have been puzzled by an excess of antimatter particles. Unfortunately, dark matter is probably not the solution. When you look out at the Universe, what you see […]
The hard part was keeping the list down to ten.
Cognitive psychologist Donald Hoffman hypothesizes we evolved to experience a collective delusion — not objective reality.
The Sudbury neutrino observatory, which was instrumental in demonstrating neutrino oscillations and the massiveness of neutrinos. With additional results from atmospheric, solar, and terrestrial observatories and experiments, we may not […]
Forget the speed of light or the electron’s charge. This is the physical constant that really matters. Why is our Universe the way it is, and not some other way? There […]
Einstein deriving special relativity, for an audience of onlookers, in 1934. The consequences of applying relativity to the right systems require that, if we demand energy conservation, E = mc² […]
Not only is the Sun’s corona visible during a total solar eclipse, but so are, under the right conditions, stars located a great distance away. With the right observations, one […]
A new study shows how interbreeding of modern humans and Neanderthals boosted our genomes.
The most distant galaxies ever observed in the Universe are smaller, full of young stars, and have high star-formation rates, relative to the Milky Way. So you’d expect them to […]
The colliding galaxy cluster “El Gordo,” the largest one known in the observable Universe, showing the same evidence of dark matter and normal matter as other colliding clusters. There is […]
And, even with all we know, what still remains unexplained? At a fundamental level, our Universe is made of particles, forces, interactions, and the fabric of space and time. Spacetime […]
High-energy collisions of particles can create matter-antimatter pairs or photons, while matter-antimatter pairs annihilate to produce photons as well. At the inception of the hot Big Bang, the Universe is […]
In this artistic rendering, a blazar is accelerating protons that produce pions, which produce neutrinos and gamma rays. Photons are also produced. While you might not think much of the […]