How big can a planet get? Scientists have new answers

When it comes to planets, bigger is not always easier to understand. The largest planets in the universe are gas giants—massive worlds made mostly...

Scientists capture a stunning “cosmic egg” as a dying star

NASA’s Hubble Space Telescope has captured a striking new image of the Egg Nebula, a rare and short-lived object formed as a star nears...

Why so few planets can support life

Life needs more than water and the right temperature to exist. New research suggests that only a small number of planets ever get the chemical...

Dead stars may be hiding the missing mass of galaxy clusters

Galaxy clusters, the largest structures held together by gravity in the universe, may be far heavier than scientists once believed. New research suggests that much...

Are there hidden dimensions to the universe

This is Part 1 of a series on large extra dimensions. I always say that one of the things that separates real science from pseudoscience...

This mysterious particle may be proof that black holes can explode

In 2023, physicists detected something that should not have existed: a single subatomic particle called a neutrino carrying an almost unimaginable amount of energy. This...

Webb Telescope spots rare five-galaxy merger just 800 million years after the big bang

Astronomers have spotted an unexpected and dramatic event in the early universe: a tightly packed collision involving at least five galaxies just 800 million...

A new cosmic map reveals how dark matter built the universe we live in

Scientists have created the most detailed map yet of dark matter—the mysterious substance that makes up most of the universe and quietly shapes everything...

How one tiny particle connects two quantum worlds

Physicists at Heidelberg University have developed a new theory that brings together two long-separate ideas in quantum physics, offering a clearer picture of how...

A one-atom-thick fix could finally unlock diamond electronics

Diamonds are famous for their beauty, but their real superpower may lie in electronics. Beyond sparkle, diamond is one of the toughest and most efficient...