Rare red noctilucent clouds over Europe announce the end of the world


Noctilucent clouds are supposed to be electric blue.

Yet during the extreme NLC outbreak of June 21st, some observers in Europe saw a different color: red.

Red and electric blue noctilucent clouds is red over Szubin, Poland on June 21, 2019. Picture by Marek Nikodem via SpaceWeatherGallery

It happened around midnight,” reports Marek Nikodem of Szubin, Poland. “The top of the clouds developed a reddish-purple canopy.

Others saw them, too, including over Piwnice, Poland:

red noctilucent clouds, red noctilucent clouds poland, red noctilucent clouds europe, red noctilucent clouds june 2019
Red and electric blue noctilucent clouds is red over Szubin, Poland on June 21, 2019. Picture by Piotr Majewski of Piwnice, Poland via SpaceWeatherGallery

And over Deventer, The Netherlands:

red noctilucent clouds, red noctilucent clouds poland, red noctilucent clouds europe, red noctilucent clouds june 2019
Red crown and electric blue noctilucent clouds over Deventer, The Netherlands Picture by Peter Paul Hattinga Verschure via SpaceWeatherGallery

What creates this color?

The answer is lack of ozone.

Much of the sunlight hitting noctilucent clouds first passes through Earth’s ozone layer. Ozone absorbs red light, while allowing blue to pass – hence the usual color of the clouds. When the sun is hanging very low, however, reddened sunlight refracted through the dense troposphere can paint the tops of NLCs red, overwhelming the usual “ozone blue.”

But ozone isn’t the only reason noctilucent clouds are blue. The clouds consist of tiny ice crystals about the size of particles in cigarette smoke. Cigarette smoke looks blue, too, and for the same reason. Tiny particles scatter blue light better than other colors.

[Spaceweather]

Follow us on FACEBOOK and TWITTER. Share your thoughts in our DISCUSSION FORUMS. Donate through Paypal. Please and thank you





Source link

Products You May Like

Articles You May Like

NASA Just Carried Out The First All-Female Spacewalk
NASA Just Unveiled Its Brand New Spacesuits For The Artemis Missions
Elon Musk Says There’s a Potentially Major Flaw in SpaceX’s Moon Base Plans
Upside-Down ‘Rivers’ Are Melting Antarctic Ice Shelves From Beneath
World’s Fastest Ant Has Just Been Clocked at a Breathtaking 855 Millimetres Per Second

Leave a Reply

Your email address will not be published. Required fields are marked *