Billions of years ago, in the giant disk of dust, gas, and rocky material that orbited our young sun, larger and larger bodies coalesced to eventually give rise to the planets, moons, and asteroids we see today.
Planetary Sciences
Jul 5, 2023
0
3332
As you are reading this, more than 400 miles below you is a massive world of extreme temperatures and pressures that has been churning and evolving for longer than humans have been on the planet. Now, a detailed new model ...
Earth Sciences
Jan 12, 2023
3
602
Industrial production of ammonia, primarily for synthetic fertilizer—the fuel for last century's Green Revolution—is one of the world's largest chemical markets, but also one of the most energy intensive.
Materials Science
Jan 11, 2023
0
57
What is the structure of the Earth? For starters, it consists of several layers: the crust, the upper and lower mantle, and the core. The mantle makes up most of our planet's volume—84%. The lower mantle represents 55% ...
Earth Sciences
Oct 20, 2022
0
474
Using various radio telescopes, an international team of astronomers has performed deep low-frequency radio observations of a merging galaxy cluster Abell 2256. The observational campaign delivered more insights into the ...
A new study refutes a provocative claim made earlier this year that fossils classified as the dinosaur Tyrannosaurus rex represent three separate species. The rebuttal, published today in the journal Evolutionary Biology ...
Evolution
Jul 25, 2022
1
992
Aircrafts transport people, ship goods, and perform military operations, but the petroleum-based fuels that power them are in short supply. In research publishing on June 30 in the journal Joule, researchers at the Lawrence ...
Biochemistry
Jun 30, 2022
0
1587
A tortoise from a Galápagos species long believed extinct has been found alive. The tortoise, named Fernanda after her Fernandina Island home, is the first of her species identified in more than a century.
Plants & Animals
Jun 9, 2022
1
1160
The first audio recordings on Mars reveal a quiet planet with occasional gusts of wind where two different speeds of sound would have a strange delayed effect on hearing, scientists said Friday.
Planetary Sciences
Apr 1, 2022
16
8243
Light is an electromagnetic wave: It consists of oscillating electric and magnetic fields propagating through space. Every wave is characterized by its frequency, which refers to the number of oscillations per second, measured ...
Optics & Photonics
Dec 2, 2021
4
3653
