We cannot see directly beyond the cosmic microwave background, which means we can't directly observe the first 380,000 years of the Universe. But there are indirect ways we might observe this period.

An international team of researchers led by the Leibniz Institute for Astrophysics Potsdam (AIP) has shed light on a decades-long debate about why galaxies spin faster than expected—and whether this behavior is caused by invisible dark matter or by a collapse…

A meteor photobombed the patch of sky containing Comet Lemmon on Oct. 24, wrapping it in a glowing trail.

Scientists detect mercury levels eight times higher in Okefenokee alligators, revealing alarming pollution in southeastern wetlands.

Comet 12P/Pons-Brooks, which visits the Earth roughly every 71 years, was spotted releasing intriguing radio signals last year.

Despite their wide variety of sizes, niches and shapes, sharks scale geometrically, pointing to possible fundamental constraints on evolution.

A dream team of European neuroscientists is advancing toward a unified theory of consciousness, potentially unlocking the mysteries of the mind.

"The national security establishment has already been doing this for five decades but thought that no one could replicate it, so they made it highly classified."

Two Sydney PhD students have pulled off a remarkable space science feat from Earth—using AI-driven software to correct image blurring in NASA’s James Webb Space Telescope. Their innovation, called AMIGO, fixed distortions in the telescope’s infrared camera, r…

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Is it possible that over the past 4.5 billion years of the Earth’s history, alien civilizations visited the solar System and installed…

A massive crater hidden beneath the Atlantic seafloor has been confirmed as the result of an asteroid strike from 66 million years ago. The new 3D seismic data reveals astonishing details about the violent minutes following impact—towering tsunamis, liquefied…

In the Egyptian Western Desert, where red sandstones and green shales rise above the arid plains of Kharga Oasis, paleontologists have uncovered a fossil that fundamentally reshapes our understanding of crocodile evolution.

The planet, the Solar System, and the galaxy aren't expanding. But the whole Universe is. So where does the dividing line begin?

The Southern Ocean has been dutifully gobbling up a century's worth of carbon dioxide and heat released by human activities, but when we finally let go of our fossil fuel habit, it might come back to haunt us.

Experts have managed to reverse quantum state of a single photon in time with 95% accuracy, bringing reversible quantum computing closer.

Beneath the ocean’s surface, the mysterious remains of a colossal creature have become the foundation for a vibrant ecosystem teeming with life.

JWST found a carbon-atmosphere planet orbiting a pulsar, challenging current models of how planets form. Scientific progress often comes from data that don’t fit our current understanding. This idea, first proposed by Thomas Kuhn in The Structure of Scientifi…

Dark-energy evidence suggests the universe will end in a “big crunch” roughly 20 billion years from now. The universe is nearing the halfway point of what may be a 33-billion-year lifespan, according to new calculations by a Cornell physicist using updated da…

The glow-in-the-dark bats you're hanging to decorate for Halloween might be more biologically accurate than you thought.

This study hints that some coral species may be more resilient than previously thought.

Neanderthals and early humans reshaped Europe’s ecosystems long before farming, altering vegetation through fire and hunting.

MIT researchers have devised a new molecular technique that lets electrons probe inside atomic nuclei, replacing massive particle accelerators with a tabletop setup. By studying radium monofluoride, they detected energy shifts showing electrons interacting wi…

Life’s origin story just became even more mysterious. Using mathematics and information theory, Robert G. Endres of Imperial College London found that the spontaneous emergence of life from nonliving matter may be far more difficult than scientists once thoug…