Most stars including the sun generate magnetic activity that drives a fast-moving, ionized wind and also produces X-ray and ultraviolet emission (often referred to as XUV radiation). XUV radiation from a star can be absorbed ...
Astronomy
Oct 4, 2021
0
191
Recently, a research team led by Dr.Li Yan from the Yunnan Observatories of the Chinese Academy of Sciences proposed a new means to explore the small-scale magnetic fields in the solar atmosphere through analyzing the frequencies ...
Astronomy
Aug 10, 2021
2
596
Clouds form when water vapor in moist packets of air condenses onto atmospheric aerosols, such as particles of dust. The transition from dry particle to liquid water droplet is known as activation. The threshold for activation ...
Earth Sciences
Mar 18, 2021
0
26
A CIRES-led team has uncovered a critical connection between winds at Earth's equator and atmospheric waves 6,000 miles away at the South Pole. The team has found, for the first time, evidence of a Quasi-Biennial Oscillation ...
Earth Sciences
Aug 17, 2020
1
212
We've known for years that Earth's climate is like a giant Rube Goldberg machine: Pull one lever, and a massive chain of events starts into motion. Yet many of the steps that drive these changes have remained shrouded in ...
Earth Sciences
Oct 29, 2019
14
1276
The gaseous layer that wraps around Earth reaches up to 630,000 kilometers away, or 50 times the diameter of our planet, according to a new study based on observations by the ESA/NASA Solar and Heliospheric Observatory, SOHO, ...
Space Exploration
Feb 20, 2019
18
656
New prospects for secure data traffic: Flashes of light in particularly sensitive quantum states can be transmitted through the atmosphere.
Quantum Physics
Sep 9, 2014
0
0
A team of Greek and German researchers has shown that the colours of sunsets painted by famous artists can be used to estimate pollution levels in the Earth's past atmosphere. In particular, the paintings reveal that ash ...
Earth Sciences
Mar 25, 2014
1
0
Putting a climate model through some dusty drills, scientists at Pacific Northwest National Laboratory found how well it depicts the climate effects of particle size. Comparing three techniques to represent the particles' ...
Earth Sciences
Feb 12, 2014
0
0
(Phys.org) —A solar tsunami observed by NASA's Solar Dynamics Observatory (SDO) and the Japanese Hinode spacecraft has been used to provide the first accurate estimates of the Sun's magnetic field.
Space Exploration
Jul 11, 2013
0
0
