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Iron and nickel vapours found in cold atmosphere of comets for first time

Iron and nickel vapours found in cold atmosphere of comets for first time
‘It was a big surprise to detect iron and nickel atoms in the atmosphere of all the comets we have observed in the last two decades .
19 May, 2021 15:00
Scientists have spoken of their “big surprise” after discovering iron and nickel vapours in the ultra-cold atmosphere of comets for the first time.
These heavy metals are usually associated with hot environments, but astronomers found atoms of nickel and iron in the clouds of dust and gas surrounding distant comets, more than 480 million kilometres from the Sun (about three times the distance between the Earth and the Sun). ....

Jean Manfroid , Piotr Guzik , Michal Drahus , Jagiellonian University , University Of Liege , Solar System , European Southern Observatory , Very Large Telescope , Milky Way , Nature Journal , பையட்ர் கூஜிக் , பல்கலைக்கழகம் ஆஃப் பொய் , சூரிய அமைப்பு , ஐரோப்பிய தெற்கு கண்காணிப்பு , மிகவும் பெரியது தொலைநோக்கி , பால் வழி , இயற்கை இதழ் ,

What Does a Meteor Shower Look Like? What Time Is Best to See the Eta Aquariids

What Does a Meteor Shower Look Like? What Time Is Best to See the Eta Aquariids
On 5/5/21 at 12:39 PM EDT
The Eta Aquariids meteor shower has reached its peak, but what should skygazers look out for and when is the best time to watch?
Meteor showers are celestial events during which several meteors appear to originate from a single point in the night sky known as the radiant. These events take place when the Earth passes through streams of cosmic debris left behind by comets and, in rare cases, asteroids.
Meteors are the streaks of light we see in the sky when tiny fragments of space debris enter the Earth s atmosphere and burn up at high speed. These streaks of light are popularly referred to as shooting stars. ....

United States , American Meteor Society , Eta Aquariids , Eta Aquariid , Northern Hemisphere , Tech Science , Meteor Showers , Halleys Comet , Solar System , ஒன்றுபட்டது மாநிலங்களில் , அமெரிக்கன் விண்கல் சமூகம் , வடக்கு அரைக்கோளம் , தொழில்நுட்பம் அறிவியல் , விண்கல் மழை , ஹாலீஸ் வால் நட்சத்திரம் , சூரிய அமைப்பு ,

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 General , City Of , United Kingdom , Jean Duprat , French National Centre For Scientific Research , French National Centre , Scientific Research , Universite Paris Saclay , Franco Italian Concordia , Adelie Land , Planetary Science Letters , Extraterrestrial Dust , Space Objects , பிரான்ஸ் ஜநரல் , நகரம் ஆஃப் , ஒன்றுபட்டது கிஂக்டம் , பிரஞ்சு தேசிய மையம் க்கு அறிவியல் ஆராய்ச்சி , பிரஞ்சு தேசிய மையம் , அறிவியல் ஆராய்ச்சி , கிரகங்கள் அறிவியல் எழுத்துக்கள் , இடம் பொருள்கள் ,

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 ,