Physics
- Physics
Scientists Say: Big Bang
The Big Bang is the current theory about how our universe came to be. It began with a vast explosion of matter — a very Big Bang.
- Physics
This device turns the kilogram’s new definition into a real mass
A new suitcase-sized device will be able to measure small masses — around 10 grams — with surprising accuracy.
- Earth
‘Biodegradable’ plastic bags often don’t break down
Biodegradable plastic bags are supposed to break down more quickly than ordinary plastics. But that may not happen, a study finds.
- Physics
Fireworks shower the skies with science
Filling the night sky with fireworks requires the help of chemists, electrical engineers and people who can choreograph theatrical shows.
- Physics
Black holes might have a temperature
Physicists made a mock black hole in their lab. They used it to show the real, celestial black holes have a slight temperature.
- Earth
Trees may become the key to ‘greener’ foam products
Scientists have made an environmentally friendly alternative to plastic-based foams to help keep things cool.
- Climate
Space weather forecast: Big storms ahead
Scientists studying blobs of energetic particles shot from the sun may help us prepare for stormy consequences on Earth.
- Earth
Dry sand can bubble like the blobs in a lava lamp
Put two types of sand grains together in a chamber and they can flow like fluids. All it takes is a jiggle and some gas.
- Physics
Scientists Say: Light pollution
Light pollution is when artificial light shines into places that are normally dark. It can disrupt the lives of plants, animals and people.
- Physics
Dying stars can make gold as they collapse into black holes
There are spinning stars in space. Some of them collapse into black holes. Along the way, they may generate a lot of heavy elements — including gold.
- Earth
New insights on how STEVE lights up the night sky
Satellite data and photos snapped by citizen scientists reveal the origins of the strange atmospheric glow called STEVE.
- Animals
Let’s turn a genie blue
Aladdin’s genie is very magical. He’s also blue. What might explain that? Nature has some tricks on offer.
