The sharpest black hole collision ever detected just gave Einstein another win—and raised hopes that the next one might ...

From the fall of an apple to the glow of the farthest known star, gravity quietly choreographs almost everything that happens ...

The discovery of the double pulsar stunned scientists 🌌 Professor Brian Cox explains how this rare cosmic system confirmed ...

One such mystery, described in a recent paper in The Astrophysical Journal Letters, concerns circumbinary exoplanets—or rather, the shortage thereof—in the now 6,000+ exoplanets confirmed to date.

This puzzle is known as the problem of time, and it remains one of the most persistent obstacles to a unified theory of ...

You might think galaxies can’t ever find each other in our runaway cosmos, but it turns out gravity can sometimes overcome ...

This idea is called the big bang model—which is an unfortunate name because it brings to mind a cosmos expanding like an ...

When someone proclaims anything with absolute certainty, I cringe. And when a politician does it, I double over in laughter. History and literature are litt ...

The counterculture icon discusses a few of the books that informed his new project, “Maintenance: Of Everything.” ...

A newly detected gravitational wave, GW250114, is giving scientists their clearest look yet at a black hole collision—and a powerful way to test Einstein’s theory of gravity. Its clarity allowed ...

In modern physics, gravity is no longer understood as a force pulling objects together. It is the bending of spacetime itself ...

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