Noctilucent cloud

Noctilucent cloud Description: A noctilucent cloud forms in the mesosphere at about 75 to 90 kilometers altitude, compared to a maximum of 12 km for common clouds. These are ice crystals that form around nuclei of dust or water vapor released by space launchers. In...

Supernova SN 2020ifo in galaxy M61

Supernova SN 2020ifo in galaxy M61 Description: On May 6, 2020, a supernova appeared in the galaxy Messier 61 in the constellation Virgo. This is the eighth supernova to be discovered in this galaxy since 1926. This supernova results from the collapse of a supergiant...

Perseids 2018

The Perséid meteors from 2018 Description: Meteors (or shooting stars) are small pieces of dust generally left by the passage of a comet which gradually disintegrates with each passage close to the Sun. The Earth in its movement along its orbit crosses the same piles...