Search results
Results from the WOW.Com Content Network
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 ...
Striations or string-like structures [67] are seen in many plasmas, like the plasma ball, the aurora, [68] lightning, [69] electric arcs, solar flares, [70] and supernova remnants. [71] They are sometimes associated with larger current densities, and the interaction with the magnetic field can form a magnetic rope structure. [72] (See also ...
Aurorae shown at the bottom of the thermosphere can form at any altitude within this layer. In general, air pressure and density decrease with altitude in the atmosphere. However, temperature has a more complicated profile with altitude and may remain relatively constant or even increase with altitude in some regions (see the temperature section).
According to the National Oceanic and Atmospheric Administration, “the aurora does not need to be directly overhead but can be observed from as much as 1000 km away when the aurora is bright and ...
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
It might seem like a simple question. But the science behind a blue sky isn't that easy. For starters, it involves something called the Rayleigh effect, or Rayleigh scattering. But that same ...
Rock and dust samples retrieved by NASA from the asteroid Bennu exhibit some of the chemical building blocks of life, according to research that provides some of the best evidence to date that ...
In particular it has been designed to study the dynamics and chemistry in the atmosphere, perhaps determining the how Jovian hot spots form. [3] H + 3 ions, ammonia, and phosphine can be mapped. [4] The ion of Hydrogen H + 3 is rare on Earth, but is one of the most common ions in the universe and known as protonated molecular hydrogen or the ...