FunWhy are the satellites shining?

Why are the satellites shining?

Every day the number of artificial satellites launched into space is increasing, many of them visible from Earth. To observe them, you have to be in an area far from the cities; most are shown as a simple star moving slowly and straight across the sky.

However, since 1997 there are many objects that throw brief and spectacular flashes of light: they are the 66 Iridium telecommunications satellites, dedicated to providing worldwide coverage to mobile telephony . Despite their small wingspan -barely 4 meters-, they even shine more than Venus, which is the most luminous planet, so they are sometimes the brightest visible objects in the sky.

It is due to the fact that they are equipped with three antennas covered in silver and polished aluminum that reflect the light that falls on them , and, as they are of low orbit – they rotate at 780 km from Earth – their flash, of 15 seconds, is very intense. Their position can be found through this website: www.heavens-above.com.

Schedules of the Valencia GP of MotoGP in Cheste and how to see it

The Cheste circuit hosts this weekend, from November 4 to 6, the 2022 MotoGP Comunitat Valenciana GP. See the schedules and all the information.

"Don't talk to me!": Danni Büchner makes a clear announcement to hated party guests

Danni Büchner is invited to Sam Dylan's Halloween party. But the "Goodbye Germany" emigrant has no desire for many other party guests. And find clear words.

King Charles III Portrait now on the first coin: Serious change to the Queen

Charles III first coins with his portrait are there. Coin lovers immediately discover two striking differences.

Unknown colourfulness

Bird Species Discovered on Islands in Indonesia

Braking was tricky

Apart from that, everything worked like a picture book for the railway world record in Switzerland

More