[ad_1]
The strange clouds, called "lenticular clouds", are often mistaken for an extraterrestrial spacecraft. The accelerated video, shared by NASA, shows the clouds as a series of images illuminated by the orange glow of the volcano lava. Unusually shaped clouds form when moist air is forced to ascend near a mountain or volcano.
Clouds form mainly in the troposphere, the lowest layer of the Earth's atmosphere.
Clouds have often been confused with UFOs throughout history, because of their smooth, round structure.
The images were shared by astrophotographer Dario Giannobile on Twitter, subtitled "Moonlight and Lenticular Clouds on Mount Etna Eruption".
NASA shared the image Monday as its astronomical image of the day. NASA explained, "What's going on over this volcano? Although Etna is erupting, the clouds are not related to the eruption.
READ MORE: Is a Monster UFO hidden by a cloud?
"These are lenticular clouds formed when moist air is forced up, near a mountain or a volcano.
"The surreal scene was captured by chance towards the end of last month when the astrophotographer went to Etna, a UNESCO World Heritage Site located in Sicily, Italy. , to photograph the conjunction between the Moon and the star Aldebaran.
"The Moon appears in a bright crescent phase, illuminating an edge of the lower lenticular cloud. The red hot lava flows to the right.
"In addition to breathtaking images, an accelerated video accompaniment shows the lenticular clouds that form and flicker as the stars spin off."
Etna, which overlooks Catania, the second largest city in Sicily, has one of the oldest documented documents on historical volcanism in the world, dating back to 1500 BC.
The National Institute of Geophysics and Volcanology (INGV) said its surveillance cameras indicated an increase in gas emissions from the NSEC's south flank base, indicating that a new crack had occurred. open to the crater.
This created ash emissions, explosions and lava flows. The volcanic ash cloud reached 4.5 km above sea level.
Despite this, Etna is considered one of the safest volcanoes in the world, with communities living around the site and a multitude of tourist sites.
The eruptions would have caused a total of 77 deaths in its history.
His unpredictable behavior considers him one of the most guarded volcanoes in the world.
Tourists are able to climb Mount Etna, but are advised to take additional and specific precautions and walk in groups.
[ad_2]
Source link