When was the last time an asteroid hit Earth? Small asteroids and other tiny particles bombard our planet daily, but almost all of them burn up safely in the atmosphere.
Astronomy
Nov 8, 2021
0
114
A team of UC San Diego-led atmospheric chemistry researchers moved closer to what is considered the "holy grail" of climate change science when it made the first-ever direct detection of biological particles within ice clouds.
Earth Sciences
May 17, 2009
1
0
Strangelets, and specifically nuclearites, their heavy species, are very dense, compact and potentially fast objects made of large and roughly equal numbers of up, down and strange quarks, which may inhabit the universe. ...
International experts are warning that potentially lethal air pollution has boomed in fast-growing big cities in Asia and South America in recent decades.
Environment
Mar 23, 2009
3
0
Life on our planet might have originated from biological particles brought to Earth in streams of space dust, a study suggests.
Astronomy
Nov 20, 2017
15
360
In a study led by the University of Leeds, scientists have solved one of the most challenging and long-standing problems in atmospheric science: to understand how particles are formed in the atmosphere.
Earth Sciences
Oct 28, 2016
8
550
A team of researchers from ETH Zurich has for the first time used simulations on the CSCS supercomputer Piz Daint to investigate how certain aging mechanisms of soot particles in the atmosphere affect cloud formation. The ...
Earth Sciences
Oct 29, 2020
36
820
(Phys.org)—In the galactic scheme of things, the Sun is a remarkably constant star. While some stars exhibit dramatic pulsations, wildly yo-yoing in size and brightness, and sometimes even exploding, the luminosity of ...
Space Exploration
Jan 11, 2013
122
0
According to the theory, small clusters of molecules in the atmosphere have difficulty growing large enough to act as "cloud condensation nuclei" on which water droplets can gather to make our familiar low-altitude clouds. ...
Astronomy
Sep 4, 2013
8
0
(PhysOrg.com) -- Giant eruptions of ionized gas, or plasma, from the Sun called coronal mass ejections [CMEs] produce solar energetic particles that cause spacecraft anomalies and communication interruptions, and can have ...
Plasma Physics
Apr 7, 2010
0
0
