Around 66 million years ago, an asteroid bigger than Mount Everest smashed into Earth, killing off three quarters of all life on the planet—including the dinosaurs.
Earth Sciences
Oct 30, 2023
0
302
(Phys.org) —The surface of Mars is full of activity, with dust storms, dust devils, and drifting dunes in constant motion. Scientists suspect that similarly rich activity may exist underneath the surface, even though it ...
In the classic fairy tale, "The Emperor's New Clothes," Hans Christian Andersen uses the eyes of a child to challenge conventional wisdom and help others to see more clearly. In similar fashion, researchers at the University ...
Soft Matter
Jul 27, 2009
10
1
The bad news: Dust from the Sahara Desert in Africa—totaling a staggering 2 to 9 trillion pounds worldwide—has been almost a biblical plague on Texas and much of the Southern United States in recent weeks. The good news: ...
Earth Sciences
Jul 20, 2018
5
484
When spacecraft and satellites travel through space they encounter tiny, fast moving particles of space dust and debris. If the particle travels fast enough, its impact appears to create electromagnetic radiation (in the ...
Plasma Physics
May 2, 2017
3
1503
(PhysOrg.com) -- The presence of fine dust on the Moon and Mars may present problems for explorers, such as coating solar panels, penetrating seals and interfering with machinery. Human explorers would also be endangered ...
The quest to discover how planets found in the far reaches of the universe are born has taken a new, crucial twist.
Astronomy
Oct 13, 2017
65
922
(Phys.org)—A small team of researchers with members affiliated with the University of Maryland, the University of Virginia and Caltech, has found that the outermost ring of Saturn is much bigger than had been previously ...
When drops of water touch the surface of a lotus flower leaf, they form beads and roll off, collecting dust particles along the way. In contrast, water droplets on a rose petal also form beads, but remain pinned to the petal's ...
Materials Science
Dec 31, 2019
1
176
Researchers from Imperial College London report that the white cliffs of Dover contain the fossilised remains of cosmic dust.
Earth Sciences
Sep 7, 2017
2
1056
