Paul Sutter

While there are hints that dark energy may be 'phantom,' its true nature remains frustratingly elusive, a new study reports.

Black holes seem to get all the attention. But what about their mirror twins, white holes? Do they exist? And, if so, where are they?

Whether you're a frequent jet-setter or a couch potato, you travel much more than you think, thanks the motion of the Earth, sun, Milky Way galaxy and more.

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.

Meet the 'bubbletrons' — theoretical particle accelerators that may have helped build the universe as we know it.

Pseudoscience is a practice that, from the outside, looks like science, but upon closer inspection, is revealed to be nothing but. And what makes a practice look like science?

Earth has held a stable orbit for over 4 billion years but what would happen if we changed Earth's orbit so to avoid the sun's violent demise?

Researchers have found a new way to measure dark energy — the mysterious force that is causing the expansion of the entire universe to accelerate — using data from our own cosmic backyard.

One astrophysicist is suggesting we remove Saturn's status as a gas giant, saying the planet tried but didn't quite make the cut.

Space mysteries Ever wondered how light slows down when passing through a material? Here we explore why the answer is not that straightforward.

In the early 20th century, a team of women went far beyond their job descriptions, not to mention the societal norms of the time, to revolutionize astronomy.

Why didn't the universe collapse into a black hole during the earliest moments of the Big Bang? Simply put, because that's not how you make a black hole.

Dark matter, the invisible material that makes up the vast majority of the universe's mass, may collect itself to form atoms, a new simulation shows.

Astronomers have used the youngest objects in the Milky Way to build a new map of the galaxy's spiral arms, and the results are far messier than expected.

In a distant star system, a sunlike star orbits an invisible object that may be the first example of a 'boson star' made of dark matter, new research suggests.

A new paper discusses how light interacts with theoretical objects called "topological solitons" — kinks in the fabric of space-time that look just like black holes.

New research suggests that Hycean exoplanets would suffer from a catastrophic runaway greenhouse effect, causing their oceans to boil away.

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.

A massive, cold clump of material in the heart of the "Dragon cloud" is ready to form a single giant star, and astronomers got a rare glimpse of the event.

Astronomers have identified a new kind of pulsar that consumes an orbiting companion, filling in a missing link about how some of the strangest systems in the universe evolve.

Observations by NASA's DART spacecraft suggest that the asteroid Dimorphos formed from material flung into space by its spinning asteroid partner, Didymos.

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.

The universe may be flat, but could still be shaped like a doughnut, weird patterns in leftover light from the Big Bang suggest.