When you peer out into the depths of the cosmos, a mystery lies there, waiting. In a survey of the deep sky, most of the galaxies are seen rotating in the same direction. This is a problem. Under ...

For decades, physicists have hunted for a single theory capable of explaining every force, particle, and interaction in the ...

In a cafe at CERN in 1992, three physicists realized they disagreed about how many constants are needed to describe all of nature. A recent paper suggests only one – time – is necessary.

As theoretical physics delves deeper into the fundamental nature of reality, we’re left to grapple with the questions it leaves us. For example, some physicists claim that our universe is merely an ...

The vast realm probed by radio astronomers is one invisible to the naked eye, and even most kinds of telescopes. Now, thanks to the latest advances in radio observatories, scientists are uncovering an ...

Black holes bend space and time in extreme ways — enough that some scientists think entire universes can form inside them. If ...

A physicist argues that many mysteries start to clear up once you accept that there is just one thing — the universe itself. You and I and every blade of grass, every rock and every mote of dust, and ...

ESA’s Euclid mission aims to uncover the mysteries of dark matter and dark energy, which together comprise the vast majority of the known universe. ESA’s Euclid mission aims to uncover the mysteries ...

It will be a view unlike any other — completely invisible, exceptionally quiet and utterly transformative. Deep in the first moments of the Big Bang, the entire cosmos shook and rumbled. Those quakes ...

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