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Earth receives tonnes of dust each year, thanks to asteroids

Every year, over 5,000 tonnes of extraterrestrial dust fall to Earth each year, scientists have determined. Our home planet encounters dust from comets and asteroids. These interplanetary dust particles pass through our atmosphere and give rise to shooting stars. Some of them reach the ground in the form of micrometeorites.

France generalCity ofUnited kingdomJean dupratFrench national centre for scientific researchFrench national centreScientific researchUniversite paris saclayFranco italian concordiaAdelie landPlanetary science lettersExtraterrestrial dustSpace objectsபிரான்ஸ் ஜநரல்நகரம் ஆஃப்ஒன்றுபட்டது கிஂக்டம்

Earth receives over 5K tonnes of extraterrestrial dust each year

Earth receives over 5K tonnes of extraterrestrial dust each year
prokerala.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from prokerala.com Daily Mail and Mail on Sunday newspapers.

France generalCity ofUnited kingdomJean dupratFrench national centre for scientific researchFrench national centreScientific researchUniversite paris saclayFranco italian concordiaAdelie landPlanetary science lettersபிரான்ஸ் ஜநரல்நகரம் ஆஃப்ஒன்றுபட்டது கிஂக்டம்பிரஞ்சு தேசிய மையம் க்கு அறிவியல் ஆராய்ச்சிபிரஞ்சு தேசிய மையம்

More than 5,000 tons of extraterrestrial dust falls onto Earth every year

More than 5,000 tons of extraterrestrial dust falls onto Earth every year
zmescience.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from zmescience.com Daily Mail and Mail on Sunday newspapers.

France generalEngrand jean dupratJean dupratScientific researchNational museum of natural historyFrench national centerNational museumNatural historyPlanetary science lettersFranco italian concordiaபிரான்ஸ் ஜநரல்அறிவியல் ஆராய்ச்சிதேசிய அருங்காட்சியகம் ஆஃப் இயற்கை வரலாறுபிரஞ்சு தேசிய மையம்தேசிய அருங்காட்சியகம்இயற்கை வரலாறு

More than 5,000 tons of extraterrestrial dust fall to Earth each year

More than 5,000 tons of extraterrestrial dust fall to Earth each year
eurekalert.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from eurekalert.org Daily Mail and Mail on Sunday newspapers.

France generalJean dupratPlanetary science lettersFranco italian concordiaபிரான்ஸ் ஜநரல்கிரகங்கள் அறிவியல் எழுத்துக்கள்

The Dawn of the Forests Brought Waves of Death to the Oceans

Nikk Ogasa, Contributor ( Inside Science ) Lub-dub. Lub-dub. Lub-dub. Like the pulse of a throbbing heart, death beat down upon the seas around 376 million to 360 million years ago. During this time over 70% of animal species disappeared, most of which lived in the ocean. These creatures perished in waves of extinction as oxygen levels in the water oscillated and the downward swings repeatedly suffocated the seas. It was the most devastating period of the Late Devonian Mass Extinction one of the five largest extinctions to ever plague the planet. But what triggered these pulses of death has remained a hotly debated topic. Now, scientists believe that the earth s orbital cycles and the emergence of the first forests may have converged to produce this fatal rhythm.

United statesUniversity of alabamaSarah carmichaelUniversity of bremenAppalachian state universityInside scienceLate devonian massDavid de vleeschouwerPlanetary science lettersUpper kellwasserPlate devonianஒன்றுபட்டது மாநிலங்களில்பல்கலைக்கழகம் ஆஃப் அலபாமாசாரா கார்மைக்கேல்பல்கலைக்கழகம் ஆஃப் ப்ரெமன்அபலாசியன் நிலை பல்கலைக்கழகம்