( The background music track today is “Shooting Stars” ) 
Today 30 June 2020 is celebrated the international day of asteroids! This is the sixth edition, created in 2014 by UNESCO to draw attention to the importance of asteroids, also called “minor planet”, not only for science but also for all humanity.
The date of June 30 was chosen in fact in memory of the Tunguska event (June 30, 1908), when a 30-40 meter asteroid exploded in the stratosphere destroying and burning a large region of Siberia (2150 square kilometers) fortunately uninhabited. Some of you will remember the 15-meter object with a mass of 10,000 tons that crashed on Chelyabinsk on February 15, 2013: it damaged a thousand houses in the Russian city east of the Urals.
Such massive events repeat every 100-200 years while minor episodes are quite frequent. In fact a few days ago, on June 22, the 4-meter “2019 MO” asteroid exploded in the Caribbean sky, releasing the power of five thousand tons of TNT.
As a passionate and curious person about science and what surrounds us outside our planet, I wanted to draw your attention to this day and to another peculiarity present in the island where I live: Sardinia
In fact in my region there is the “Sardinia Radio Telescope” or SRT one of the largest and most advanced radio telescopes in the world,
as well as the most important in Italy!
This huge technological tool is located in “Pranu 'e sànguni”, (here) in the territory of the municipality of San Basilio , in the province of Cagliari .
The work of the Sardinia Radio Telescope is dedicated 80% of the time to scientific research, while the remaining 20% perform control functions of the automatic space exploration missions and artificial satellites in orbit around the Earth.
These days the SRT has been the cause of much attention by newspapers and news programs thanks to some important events …
In fact, as published on the ANSA (national associated press agency) website, a Sardinian researcher has beaten thanks to the SRT
a new record as read in the article:
"Record radio flash for the Sardinia radio telescope (Srt). The study was published today in the Astrophysical Journal,
conducted by Maura Pilia of the INAF of Cagliari, who observed with the Srt the new “fast radio flash”.
The new observations from Sardinia broke the previous record in terms of radio frequency,
lowering it from 400 to 327 megahertz: the lowest at which these phenomena have ever been observed.
Fast Radio Burst (Frb), are quite new and unusual celestial phenomena:
to date there are 122 of them, discovered in seven years of observations.
They are enigmatic events, very short “flashes” in radio waves from other galaxies"
Another important event in the Sardinian radio telescope was the arrival of the “PRISMA” all-sky camera, acronym for “First network for the systematic surveillance of meteors and atmosphere”. PRISMA is a scientific project of the National Institute of Astrophysics, which provides for the installation throughout Italy of a network of cameras identical with the aim of constantly monitoring the sky in search of bright meteors.
Meteors are to be considered as transient optical phenomena, that is, we are able to see the entry into the atmosphere
of a small wandering object called a meteoroid. If, after friction with the atmosphere, the meteoroid does not completely dissolve,
what falls on earth can be called a meteorite.
I hope this post was interesting and useful to discover a new curiosity about our world and my land.
Are you also a passionate or simply curious about science and what surrounds us? You know some curiosities about it
or some important scientific news discovered in your country?
Let me know below in the comments! 
in fact, I believe that at least the screenshots acquired through Google Earth can be posted (or not?). The other photos were provided without copyright and I thought I could post them (in fact in the description I described the origin). Which ones should I take off exactly?