Physics
- Earth
Adhesive from trees could make tape more eco-friendly
The stuff that makes your tape sticky comes from fossil fuels. Now scientists have used tree wastes to engineer a “greener” tape adhesive — one kinder to the environment.
- Chemistry
Scientists Say: Kelvin
Kelvin is a temperature scale. It’s based around the concept of “absolute zero,” a temperature so cold that molecules stop moving.
- Physics
Distant galaxy seems filled with dark matter
If the Cosmic Seagull is a repository for dark matter, it will be the most distant galaxy to be filled with mysterious stuff.
- Climate
Hawaii’s record 2018 rains may foretell wetter times ahead
Another rainfall record was set in Hawaii. But how does this stack up to other rain records across the United States?
- Physics
Analyze This: Can you outrun these geological disasters?
There's one geological disaster you probably can outrun, and a few others that are iffy.
- Physics
Scientists traced an incoming neutrino back to its galactic birthplace
The high-energy particle was born in a blazar 4 billion light-years away, scientists now report.
- Physics
Scientists Say: Infrared
Infrared light belongs to a part of the spectrum that people can’t see. But this kind of light can be used to “see” the heat signatures of objects.
- Animals
Electric currents in the air may cue ‘ballooning’ spiders on when to take off
Some spider species float on the breeze using a parachute of silk. A new study suggests electrical charges in the air help spiders time these flights.
- Physics
Mars appears to have a lake of liquid water
A 15-year-old Mars orbiter has spotted signs of a salty lake beneath the Red Planet’s southern polar ice sheets.
- Physics
An active sun is a somewhat smaller sun
The sun grows and contracts a little over cycles lasting around 11 years, new data show. Changes in the strength of its magnetic fields may help explain this.
- Physics
To witness maximum pressure, peek inside a proton
Scientists used experimental data to estimate the pressures inside a proton. And surprise: Its mega-big — the greatest known!
- Physics
The plant world has some true speed demons
Some plants can fling, snap and hop at dizzying speeds. Such botanical gymnastics gives lie to the idea that all plants are slow, boring stick-in-the-muds.
