Nothing is harder to find than you might think.
Protons and neutrons in an atom’s nucleus can be arranged in different configurations, creating nuclear isomers.
KTSdesign/SciencePhotoLibrary via Getty Images
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.
It is now up to individuals whether to wear masks in airports and other mass transit areas.
AP Photo/Evan Vucci
Despite the halt to the federal mask mandate for mass transit, people may still choose to protect themselves. For those who do, the type of mask and how well it fits matter.
Not all masks offer the same level of protection for you and those around you.
Martin Barth/EyeEm via Getty Images
The CDC’s updated mask guidelines say that cloth masks offer the least protection from COVID-19. Differences in the materials masks are made from and the ways they fit are the reason.
Experiments at the Large Hadron Collider in Europe, like the ATLAS calorimeter seen here, are providing more accurate measurements of fundamental particles.
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
Gravity exists because the universe is full of ‘stuff’ – here’s how it came to be.
Future technologies will exploit today’s advances in our understanding of the quantum world.
Things get weird at the quantum level and now we know they can happen really fast when a particle pushes through an almost insurmountable barrier.
A magical sight.
The northern lights might look like magic, but they can actually be explained by science – here’s how.
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.
How exactly do the stars twinkle in the night sky? As it turns out, the answer is full of hot air… and cold air.
Rainbows get their round shape from a process called reflection.
Georgina, age 5, wants to know why rainbows are round.
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.
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
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.
Neutrinos, we’re looking for you! Japan’s Super-Kamiokande detector.
Kamioka Observatory, ICRR (Institute for Cosmic Ray Research), The University of Tokyo
The Nobel Prize-winning research on neutrinos is expected to push the boundaries of science and technology.