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Probability densities for the electron of a hydrogen atom in different quantum states. (ref: http://en.wikipedia.org/wiki/Quantum_state)

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The central region of #N44 | The intricate and colorful nebula is produced by the ionized gas that shines electrons and positively charged recombining, emitting a cascade of photons in a particular wavelength atomic nuclei. Such nebulae are called "H II regions", meaning ionized hydrogen, i.e. hydrogen atoms that have lost an electron (proton).

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Tracks of electrons and positrons (anti-electrons), moving left to right through hydrogen neon bubble chamber. Taken at CERN.

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from io9

The First Image Ever of a Hydrogen Atom's Orbital Structure

The First Image Ever of a Hydrogen Atoms Orbital Structure What you’re looking at is the first direct observation of an atom’s electron orbital — an atoms actual wave function! To capture the image, researchers utilized a new quantum microscope — an incredible new device that literally allows scientists to gaze into the quantum realm.

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from Mail Online

First contact... or the start of World War III? Amateur cameraman captures stunning glowing cloud in the skies over Russia

Lenticular cloud, Russia. Captured just at the right moment, when the sun is directly striking the bottom of the cloud and light is refracted through the top of the cloud. It gives an amazing two-tone effect. 'I just learned that this is a hydrogen bomb building a mushroom cloud. Destruction has its short moments of beauty too..'

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from HubPages

BIRTH OF THE STARS, Photos of the Universe

BIRTH OF THE STARS, Photos of the Universe …

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from io9

The First Image Ever of a Hydrogen Atom's Orbital Structure

What you’re looking at is the first direct observation of an atom’s electron orbital — an atom's actual wave function! To capture the image, researchers utilized a new quantum microscope — an incredible new device that literally allows scientists to gaze into the quantum realm.

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The central region of #N44 | The intricate and colorful nebula is produced by the ionized gas that shines electrons and positively charged recombining, emitting a cascade of photons in a particular wavelength atomic nuclei. Such nebulae are called "H II regions", meaning ionized hydrogen, i.e. hydrogen atoms that have lost an electron (proton). Their spectra are characterized by the emission lines whose relative intensities carry useful information about the composition, temperature, and..

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NGC 6888: The Crescent Nebula Image Credit: J-P Metsävainio (Astro Anarchy)