Neutrinos are low-mass subatomic particles with zero electric charge that interact with matter only via the weak nuclear force and gravity. This makes neutrinos difficult to detect, despite the fact ...

Three thought experiments involving “demons” have haunted physics for centuries. What should we make of them today?

The idea that a hidden fourth dimension could be woven into everyday reality is no longer just a science‑fiction trope.

Star clusters are of great importance in any galaxy: they are the birthplace of new stars, often containing massive stars of ...

From a particle smasher encircling the moon to an “impossible” laser, five scientists reveal the experiments they would run ...

Deep under the Antarctic ice, instruments built to catch ghostly particles have stumbled on something stranger than anyone ...

Unexplained signals from Antarctica’s ice are baffling scientists. These mysterious pulses challenge everything we know.

In 1867, Lord Kelvin pictured atoms as tiny knots in an invisible medium called the ether. That picture turned out to be wrong, since atoms are built ...

Knotted structures once imagined by Lord Kelvin may actually have shaped the universe’s earliest moments, according to new ...

Odd radio waves emanating from the ice don’t fit our model of particle behavior. Could they be a sign of dark matter?

For three decades, a riddle has followed neutrinos, the near-weightless particles that stream through Earth by the trillions ...

Forty years ago, Voyager imaged Uranus and presented the world with a new mystery. Upon further inspection, it may have just ...