The science behind auroras, red skies and coloured clouds
2023年4月25日 · From the ephemeral red of a sunset to the elusive, multi-coloured southern lights, what is the science behind colours in the sky — and can those colours tell us anything about the weather?
Awesome Aurora - Australian Antarctic Program
The aurora australis or ‘southern lights’ are the shimmering curtains of green, red and sometimes violet light, appearing in the night sky, around the south magnetic pole. In the northern hemisphere they are called the aurora borealis or ‘northern lights’.
The Southern Lights - Aurora Australis - Antarctica Guide
2018年2月26日 · Travellers come from across the globe to witness the spectacular natural light display in the high-altitude Antarctic region. The Southern lights are much more elusive than their Northern Hemisphere counterpart-Aurora Borealis. There is significantly less land mass in the Southern Hemisphere and fewer ideal viewing spots to see the Aurora.
Aurora - Wikipedia
An aurora [a] (pl. aurorae or auroras), [b] also commonly known as the northern lights (aurora borealis) or southern lights (aurora australis), [c] is a natural light display in Earth's sky, predominantly seen in high-latitude regions (around the Arctic and Antarctic). Auroras display dynamic patterns of brilliant lights that appear as curtains ...
Why There's Red and Green Snow in Antarctica - Atlas Obscura
2023年12月1日 · Snow algae blooms can be red or green. Jerzy Strzelecki, CC BY-SA 3.0. These “snow algae” are sometimes also known as “watermelon snow,” because they can produce shades of pink, red, or green....
Rare celestial phenomenon observed in Antarctica - Polarjournal
2022年11月5日 · A STEVE (Strong Thermal Emission Velocity Enhancement) is a mostly pink to red glowing band of a stream of ions up to 3,000°C hot in the night sky. In contrast, an aurora (polar light) is a flow of electrons from solar winds hitting oxygen and nitrogen molecules, emitting energy in the form of light.
Is the old adage "Red sky at night, sailor's delight. Red sky in ...
2019年11月19日 · A red sky suggests an atmosphere loaded with dust and moisture particles. We see the red, because red wavelengths (the longest in the color spectrum) are breaking through the atmosphere. The shorter wavelengths, such as blue, are scattered and broken up. Red evening sky, Cape Lookout National Seashore, 2015. National Park Service, NP Gallery
What Causes Rainbow-Colored Clouds in the Sky? - ThoughtCo
2019年2月15日 · Few sky watchers have ever mistaken a rainbow before, but rainbow-colored clouds are victims of mistaken identity every morning, noon, and twilight. What causes rainbow colors within clouds? And which kinds of clouds can appear multi-colored?
The Stunning, Unexpected Colors of Antarctica and Its Penguins
2014年6月16日 · Microscopic red algae (Chlamydomonas nivalis) exist dormant-like in the snow and ice of Antarctica, until they’re activated by seasonal rises in temperature. The triggered algae bloom can glow...
Halley VI Research Station - British Antarctic Survey
As the pandemonium of midwinter subsides the reality of Antarctic winter grips us firmly by the throat, a deep red floods the afternoon sky allowing a hint of blue to …