Post Profile

Found: Fossil Space Dust Hidden in the White Cliffs of Dover

Here’s a wonderful word to add to your vocabulary: Micrometeorites. Micrometeorites are teeny particles, less than a millimeter in size, that made it through Earth’s atmosphere from space. They are extraterrestrial, cosmic dust, star stuff—or, more precisely, asteroid stuff. As they speed through the atmosphere, micrometeorites melt to form spherical drops, and when they land on Earth, they cool and form dendritic crystals that branch from their surface like trees.
read more


Related Posts

Particles from birth of the solar system found on rooftops in Paris, Oslo and Berlin

Lifestyle / Travel : Daily Mail: Travel

Scientists usually collect cosmic dust in the frozen wastes of Antarctica. Now, for the first time, the space debris has been found hidden in city dirt.

Scientists find fossilised cosmic dust in white cliffs of Dover

Issues & Causes / Environmentalism : Physorg: Earth

Researchers from Imperial College London report that the white cliffs of Dover contain the fossilised remains of cosmic dust.

Cosmic dust parachutes to Earth by bubble — and that finding could change our understanding of the solar system

Technology / Technology Industry News : Silicon Alley Insider

Cosmic dust is exactly what it sounds like — dust in outer space. Most particles are tiny, between a few molecules to 0.1 micrometres in size. Sometimes, they make it through the Earth's atmosphere in one piece, revealing some myste...

Fossilized space dust from 2.7 billion years ago holds surprise about Earth's ancient atmosphere

Health : LA Times: Health

Each year, more than 3,000 tons of space dust fails to burn up in our planet's atmosphere and falls instead to Earth's surface. These micrometeorites are just a few microns in diameter, but scientists say that embedded in the fossil...

Cosmic dust reveals Earth's ancient atmosphere

Academics / General Science : ScienceDaily: Science Society

Using the oldest fossil micrometeorites -- space dust -- ever found, new research has made a surprising discovery about the chemistry of Earth's atmosphere 2.7 billion years ago.


Copyright © 2016 Regator, LLC