The upside down is a dark mirror antimatter version of our universe that is inhospitable to humans and is dangerous for all that venture into it. The landscape of the upside down is similar to our ...

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

The hero is regular matter, which is everything we can see around us. Antimatter is the mirror-image explosive twin that ...

Can you chip in? As an independent nonprofit, the Internet Archive is fighting for universal access to quality information. We build and maintain all our own systems, but we don’t charge for access, ...

Why does the Universe exist instead of having been annihilated shortly after its birth? This fundamental question in physics finds new illumination thanks to an unprecedented collaboration ...

Dipangkar Dutta receives funding from US Department of Energy and the National Science Foundation. Imagine an epic video game with your favorite hero as a character. Another character is a ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Curious Kids is a series for children of all ages. If you have a question you’d like ...

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Valued at $62.5 trillion per gram, antimatter is the world's costliest material. Know how this substance—which packs the energy of four nuclear bombs-is created at CERN and stored using Penning traps.