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Bad Astronomy | 5200 tons of meteorite dust falls to Earth every year

New research looking at micrometeorites literally microscopic bits of meteorites, particles of rocks and metals from space that fall to Earth shows that about
5,200 tons of this cosmic debris settles onto the ground every year. 5.2 million kilos per annum, or about 14 tons per day. At
least. That s equivalent to the mass of a garbage truck every day.
Oof.
Also, this is very wee stuff, smaller than a millimeter in size and some smaller than the width of a human hair. There s no reason to panic
. It slows from interplanetary speeds to basically 0 way up in the atmosphere and then drifts down to the ground. It s no danger, and in fact is quite welcome, since it tells us a lot about what s going on in space. ....

Engrand Jean Duprat , Jean Duprat , John Chumack , Crash Course Astronomy , Concordia Research Station , South Pole , Bad Astronomy , செயலிழப்பு நிச்சயமாக வானியல் , காணகார்டிங் ஆராய்ச்சி நிலையம் , தெற்கு போலே , மோசமான வானியல் ,

A watercolour sky

A watercolour sky
The Atacama Desert in Chile is one of the darkest and most peaceful astronomical sites on Earth and has, as a result, proven to be the perfect location for ESO’s various observatories and powerful instruments.
This view shows ESO’s Paranal Observatory, home to the behemoth Very Large Telescope (VLT). The constituent telescopes of the VLT can be seen standing sentinel beneath a star-studded sky featuring the glittering arch of our Galaxy, and the glowing Magellanic Clouds (left). As this image demonstrates, the sky over Paranal isn’t completely dark; after sunset, the beauty of the Universe is overshadowed by that of Earth’s own atmosphere, which glows in multiple hues and paints the sky like a watercolour. The playful brushstrokes of the faraway emission nebulae that adorn the Milky Way and the constellation of Orion (The Hunter) in the upper centre of the frame, are joined by the soft swaths of green, yellow, red, and orange lying close to th ....

Milky Way , Magallanesy Antaica Chilena , Atacama Desert , Very Large Telescope , Magellanic Clouds , Eso Org , La Silla , பால் வழி , மிகவும் பெரியது தொலைநோக்கி , எஸொ ஒர்க் , லா சில்லா ,

2I/Borisov Update: The Comet is the Most "Pristine" Space Object Ever Studied

Ever since 2I/Borisov was first discovered, astronomers have been fascinated with this interstellar comet. With new information being discovered about the comet, experts have confidentially called it the most “pristine” space object that’s ever been studied.
Astronomers don’t think that 2I/Borisov ever traveled close to any star (other than our sun) which means that its composition of gas and dust was completely pure and original. When comets travel close to stars, they can become altered or degraded by the sun’s radiation and heat. Stefano Bagnulo, who is from the Armagh Observatory and Planetarium, Northern Ireland, UK, and who led the new study, stated, “2I/Borisov could represent the first truly pristine comet ever observed.” ....

United Kingdom , Northern Ireland , Stefano Bagnulo , Alberto Cellino , Nature Communications , National Institute For Astrophysics , Armagh Observatory , European Southern Observatory , Very Large Telescope , Comet Hale Bopp , Astrophysical Observatory , National Institute , Solar System , Atacama Large , 2i Borisov , Atacama Large Millimeter Submillimeter Array , Hale Bopp , Interstellar Comet , Interstellar Object , Space Amp Astronomy , ஒன்றுபட்டது கிஂக்டம் , வடக்கு ஐயர்ல்யாஂட் , ஸ்டெபனோ பங்க்குளோ , இயற்கை தகவல்தொடர்புகள் , தேசிய நிறுவனம் க்கு வானியற்பியல் , அர்மாக் கண்காணிப்பு ,

From Sunlight to Starlight

ESO, European Organisation for Astronomical Research in the Southern Hemisphere ....

From Sunlight , Atacama Desert , Large Telescope , Eso Org , La Silla , இருந்து சூரிய ஒளி , பெரியது தொலைநோக்கி , எஸொ ஒர்க் , லா சில்லா ,

ESOblog - In conversation with Catherine Cesarsky:

ESOblog
8 March 2021
How Catherine’s different leadership roles have shaped her perspective of science.
What were Catherine’s most memorable moments as Director General of ESO.
What Catherine is most looking forward to in the future of astronomy.
In celebration of International Women’s Day, we spoke to Catherine Cesarsky, who was ESO Director General between 1999 and 2007. Since then, she has taken on a number of prestigious leadership roles including President of the International Astronomical Union and High Commissioner for Atomic Energy in France. We find out how she got into astrophysics, about her most recent leadership role and what she is looking forward to in the future. ....

France General , United States , South Africa , Milky Way , Magallanesy Antaica Chilena , Buenos Aires , Distrito Federal , Energy Astrophysics , National Science Foundation , Natural Sciences , School Of Engineering At Buenos Aires University , Buenos Aires University , Square Kilometer Array , Western Australia , Extremely Large Telescope , James Webb Space Telescope , Very Large Telescope , Director General , Nobel Prize , Advanced Telescope , High Energy Astrophysics , Laser Interferometer Space Antenna , Eso Org , La Silla , பிரான்ஸ் ஜநரல் , ஒன்றுபட்டது மாநிலங்களில் ,