Expert Voices Paul Sutter

The modern scientific fields of astronomy and physics stretch back for centuries, and so naturally they've accumulated a lot of interesting names for objects, ideas, and phenomena.

A large population of small black holes could have flooded the young cosmos with particles and radiation, creating their own black hole-powered Big Bang, physicists propose in a new paper.

These cosmic rays typically come from the extremely distant universe, from ultrapowerful events such as supernovas and quasars.

Mercury is so strange that astronomers have not been able to explain its properties with simulations of the solar system's formation. But now, researchers have found an important clue.

Finding and studying these strange stars helps us understand the complicated life cycles of normal, more well-behaved stars.

Want to become a published astronomer? All it takes is a spare telescope, or at least a decent internet connection, and plenty of patience.

Einstein toyed with the idea of faster-than-light-particles but found that such particles violated a central rule of the universe: causality.

The top quark is about 100 trillion times heavier than the up quark. But why?

The concept of atoms had been floating around off and on for a few millennia, but it took some clever experimentation to pinpoint their existence.

Some interpretations of quantum mechanics propose that our entire universe is described by a single universal wave function that constantly splits and multiplies.

Lagrange found that the difference between an object's kinetic energy and potential energy unlocked something deeply profound about the universe.

Astronomers hope to use pulsars scattered around the galaxy as a giant gravitational wave detector. But why do we need them, and how do they work?

But could these giant, rocky planets actually sustain the conditions for life? Or is life limited to smaller planets like our own?

A new hypothesis proposes that a large fraction of dark matter may be bound up inside tight balls the size of Neptune — so-called dark matter planets.

New research motivated by string theory suggests possible, and equally strange, fates for evaporating black holes.

By now, most people have heard the refrain: "The Higgs boson creates mass." But the reality is a bit more complicated than that.

Let's be perfectly honest: The Higgs boson and its role in the universe are not the easiest things to explain.

The Higgs boson particle could have kept our universe from collapsing within a larger multiverse, physicists say.