A simple explanation of dark matter and antimatter, how they differ, how scientists study them, and why both are important to understanding the universe.

Since the expansion of the Universe was first found to accelerate nearly 20 years ago, scientists have yearned for a compelling, simple, and testable explanation. Yet as more and more data from ...

The first evidence for dark matter were galaxies that behaved as if they had far more matter than could be accounted for by the mass of their stars. Since then, we've found many other indications that ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. For about 50 years ...

Most matter in the universe cannot be seen — but its influence on the largest structures in space can. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...

Most of what people casually call “the universe” is not where instinct suggests. Stars, planets and glowing gas clouds are ...

Rajendra Gupta receives unconditional research funding from Macronix Research Corporation. He is affiliated with the American Physical Society, Royal Astronomical Society, European Astronomical ...

At the end of a lecture on astronomy, describing how the planets orbit the Sun, a little old lady at the back of the room stood up and said: "What you've told us is all rubbish. The world is really a ...

Science and philosophy have a long, complicated history. Both are human endeavors aimed at articulating the nature of the world. But where the line between them lies depends a lot on perspective and ...