Mount Etna lights up sky with red explosions(1/4)

Photo taken on Feb.18, 2021, shows Mt. Etna, Europe's biggest active volcano erupting in Sicily, Italy. Mount Etna. Mount Etna, Europe's most active volcano, erupted several times in one day. The explosion even closed down an airport. (Photo/Agencies)

Mount Etna, Europe's most active volcano, continued scattering lava, ash and volcanic stones, in Sicily, Italy, Feb.18, 2021. (Photo/Agencies)

Mount Etna, Europe's most active volcano, continued scattering lava, ash and volcanic stones, in Sicily, Italy, Feb.18, 2021. (Photo/Agencies)

Mount Etna, Europe's most active volcano, continued scattering lava, ash and volcanic stones, in Sicily, Italy, Feb.18, 2021. (Photo/Agencies)