Stars orbiting black holes were observed to move significantly slower than expected. One explanation centers on dark matter.
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Glueballs are an unusual, unconfirmed Standard Model prediction, suggesting bound states of gluons alone exist. We just found our first one.
Humanity is in trouble. Here’s how aliens could help.
Lasers are all around you. This ubiquitous technology came from our understanding of quantum physics.
Environmental progress is happening quickly but we must keep pushing for change.
We thought the Big Bang started it all. Then we realized that something else came before, and it erased everything that existed prior.
Sometimes, going “deeper” doesn’t reveal the answers you seek. By viewing more Universe with better precision, ESA’s Euclid mission shines.
Our model of the Universe, dominated by dark matter and dark energy, explains almost everything we see. Almost. Here’s what remains.
Neuroscientists think a cluster of cells in the brain that stimulate appetite could be a target for eating disorder therapies.
Over time, the Universe becomes less dominated by dark matter and more dominated by dark energy. Is one transforming into the other?
We live in a four-dimensional Universe, where matter and energy curve the fabric of spacetime. But time sure is different from space!
In our Universe, matter is made of particles, while antimatter is made of antiparticles. But sometimes, the physical lines get real blurry.
In the 20th century, many options abounded as to our cosmic origins. Today, only the Big Bang survives, thanks to this critical evidence.
James Suzman lived with a tribe of hunter-gatherers to witness how an ancient culture survives one of the most brutal climates on Earth. His learnings may surprise you.
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The last naked-eye Milky Way supernova happened way back in 1604. The next one could be the key to solving the dark matter mystery.
Wind energy is one of the cleanest, greenest sources of power. But could it have the sneaky side-effect of changing the weather?
Smashing things together at unprecedented energies sounds dangerous. But it’s nothing the Universe hasn’t already seen, and survived.
For a substantial fraction of a second after the Big Bang, there was only a quark-gluon plasma. Here’s how protons and neutrons arose.
U.S. particle physicists recently recommended a list of major research projects that they hope will receive federal funding.
What do you call it when the Earth shakes for three decades?
Billions of years ago, the ever-increasing entropy must’ve been much lower: the past hypothesis. Here’s how cosmic inflation solves it.
The quantum world is one in which rules that are completely foreign to our everyday experience dictate bizarre behavior.
Two of the answers add a dimension to physics that doesn’t belong there. Maybe we could call it “astrotheology.”
A part of human nature needs to be challenged and feel strong. Today, we fulfill that need with “surrogate activities.”
No matter what physical system we consider, nature always obeys the same fundamental laws. Must it be this way, and if so, why?
This technological feat changes our cosmic history.
Everything we observe beyond our Local Group is speeding away from us, omnidirectionally. If the Universe is expanding, where is the center?
The science fiction dream of a traversable wormhole is no closer to reality, despite a quantum computer’s suggestive simulation.
In general relativity, white holes are just as mathematically plausible as black holes. Black holes are real; what about white holes?
The most common element in the Universe, vital for forming new stars, is hydrogen. But there’s a finite amount of it; what if we run out?