Menu Close

Articles on Particles

Displaying all articles

Protons and neutrons in an atom’s nucleus can be arranged in different configurations, creating nuclear isomers. KTSdesign/SciencePhotoLibrary via Getty Images

Nuclear isomers were discovered 100 years ago, and physicists are still unraveling their mysteries

Nuclear isomers are rare versions of elements with properties that mystified physicists when first discovered. Isomers are now used in medicine and astronomy, and researchers are set to discover thousands more of them.
Experiments at the Large Hadron Collider in Europe, like the ATLAS calorimeter seen here, are providing more accurate measurements of fundamental particles. Maximilien Brice

2021: a year physicists asked, ‘What lies beyond the Standard Model?’

Physicists know a lot about the most fundamental properties of the universe, but they certainly don’t know everything. 2021 was a big year for physics – what was learned and what’s coming next?
Gravity helps stars to form. UNIMAP / L. Piazzo, La Sapienza – Università di Roma; E. Schisano / G. Li Causi, IAPS/INAF, Italy

Curious Kids: how long has gravity existed?

Gravity exists because the universe is full of ‘stuff’ – here’s how it came to be.
Lasers being shone from the European Southern Observatory’s Very Large Telescope in Chile. These lasers help remove the twinkles in the night sky and help astronomers see stars clearer on Earth than ever before. F. Kamphues/ESO

Curious Kids: Why do stars twinkle?

How exactly do the stars twinkle in the night sky? As it turns out, the answer is full of hot air… and cold air.
Earth, shot from space, as it absorbs and reflects rays of light coming from the Sun - the same white-looking rays that give our sky its colour. NASA

Curious Kids: Why is the sky blue and where does it start?

Some people think the sky is blue because of sunlight reflected off the ocean and back into the sky. But that’s not the real reason.
Jets generated by supermassive black holes at the centers of galaxies can transport huge amounts of energy across great distances. REUTERS/X-ray: NASA/CXC/Tokyo Institute of Technology/J.Kataoka et al

Radio galaxies: the mysterious, secretive “beasts” of the Universe

It’s difficult to get jets - powerful, lightning fast particles - to give up their secrets. The new Square Kilometre Array radio telescope could hold the key to solving jets’ mysteries.

Top contributors