5 mysterious phenomenon that occur in the sky…

1. NORTHERN LIGHTS aka AURORA BOREALIS-

The Vikings believed the Northern Lights illuminating the sky were the reflections of the Valkyries’ armour as they led the warriors to Odin. Dying in battle was considered an honour for our Norse ancestors and many of their legendsfeature great battles which celebrate warriors who died fighting.

They remain on top of the list of explorers and photographer. It should definitely be on your bucket list. Here’s what basically happens.

In the ionosphere, the ions of the solar wind collide with atoms of oxygen and nitrogen from the Earth’s atmosphere. The energy released during these collisions causes a colorful glowing halo around the poles—an aurora. Most auroras happen about 97-1,000 kilometers (60-620 miles) above the Earth’s surface.

Best places and time to see- https://www.travelchannel.com/roam-blog/adventure/the-world-s-best-places-to-see-the-northern-lights

Credits- Deepti dheer

2. NACREOUS CLOUD aka MOTHER OF PEARLS aka POLAR STRATOSPHERIC CLOUD

Credits: google

Description

Polar stratospheric clouds are clouds in the winter polar stratosphere at altitudes of 15,000–25,000 m. They are best observed during civil twilight, when the Sun is between 1 and 6 degrees below the horizon, as well as in winter and in more northerly latitudes. THESE ARE EXTREMELY RARE AND HAVE BEEN ASSOCIATED WITH OZONE LAYER DESTRUCTION.

https://www.skybrary.aero/index.php/Polar_Stratospheric_Cloud_(PSC)

3.HALO CLOUD

Credits: google

The ice crystals responsible for halos are typically suspended in cirrus clouds in the upper troposphere (5–10 km (3.1–6.2 mi)), but in cold weather they can also float near the ground, in which case they are referred to as diamond dust. The particular shape and orientation of the crystals are responsible for the type of halo observed. Light is reflected and refracted by the ice crystals and may split into colors because of dispersion.

4.CONTRAILS

These are relatively common, nevertheless a sight for sore eyes. The trail that airplanes leave behind. They can be miles long

Planes create their mesmerizing contrails as they soar high in the thin, cold air. Water vapor quickly condenses around soot from the plane’s exhaust and freezes to form cirrus clouds, which can last for minutes or hours.

https://www.sciencemag.org/news/2019/06/aviation-s-dirty-secret-airplane-contrails-are-surprisingly-potent-cause-global-warming

5. VIRGA- THE RAIN THAT NEVER FALLS.

Not all rain that leaves the sky falls on earth.

In meteorology, a virga is an observable streak or shaft of precipitation falling from a cloud that evaporates or sublimates before reaching the ground. A shaft of precipitation that does not evaporate before reaching the ground is a precipitation shaft.

Credits: google

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