Created by the sun, the protective bubble of the heliosphere shields our solar system from harmful radiation. A new mission ...

Understanding the universe's building blocks, the Standard Model categorizes particles and explains forces, yet leaves questions about gravity and dark matter.

The European Organization for Nuclear Research — better known as CERN — is a place of scientific breakthroughs. Since 1954, ...

Two recent studies by Professor Stefano Profumo at the University of California, Santa Cruz, propose theories that attempt to answer one of the most fundamental open questions in modern physics: What ...

It is dust made up of sand and mineral particles swept up from 3.5 million square miles of Africa's Sahara Desert. Also called the Saharan Air Layer (SAL) by the National Oceanic and Atmospheric ...

Particles in the smoke are so small that they can evade some of the lung’s natural defenses, causing not only breathing problems but also other health concerns if they enter the bloodstream. Smoke ...

Holly has a degree in Medical Biochemistry from the University of Leicester. Her scientific interests include genomics, personalized medicine, and bioethics. As the old philosophical question goes, ...

Dear Doctors: We live in the fire zone in Altadena, California. After the evacuations ended, we came home, and now my throat is constantly sore. There’s no smoke smell, but my husband says the air can ...