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You entered: ionization
![Квазар H1821+643: Вселенная заполненная водородом](https://images.astronet.ru/pubd/2006/11/10/0001217514/qso1821_wiyn_big.preview.jpg)
16.05.2000
A quasar slightly depleted of a specific color of light may indicate that our universe is filled with massive amounts of ionized hydrogen. Light from QSO H1821+643, pictured above, comes to us from about a quarter of the way across the visible universe.
![Остаток вспышки сверхновой: кулинария в Большом Магеллановом Облаке](https://images.astronet.ru/pubd/2003/10/03/0001193593/n132d_hst_big.preview.gif)
9.05.1996
Massive stars cook elements in their cores through nuclear fusion. Starting with the light elements of hydrogen and helium, their central temperatures and pressures produce progressively heavier elements, carbon, oxygen, nitrogen, etc. up through iron.
![SH2-155: туманность Пещера](https://images.astronet.ru/pubd/2017/03/23/0001378654/CaveNebula-SH2-155ColesHelm1024.preview.jpg)
22.03.2017
This skyscape features dusty Sharpless catalog emission region Sh2-155, the Cave Nebula. In the telescopic image, data taken through a narrowband filter tracks the reddish glow of ionized hydrogen atoms. About 2,400 light-years away, the scene lies along the plane of our Milky Way Galaxy toward the royal northern constellation of Cepheus.
![Нарисованная туманность Кольцо](https://images.astronet.ru/pubd/2012/09/15/0001270034/M57burgeot.preview.jpg)
15.09.2012
A planetary nebula with a simple symmetry familiar to telescopic sky gazers, the Ring Nebula (M57) is some 2,000 light-years away in the musical constellation Lyra. Hints of changing colors and subtle details are brought out in this remarkable sketch of the cosmic ring.
![SH2 155: туманность Пещера](https://images.astronet.ru/pubd/2014/11/06/0001325200/C9CaveNebulaSHOSnyder1024.preview.jpg)
5.11.2014
This colorful skyscape features the dusty Sharpless catalog emission region Sh2-155, the Cave Nebula. In the composite image, data taken through narrowband filters tracks the glow of ionized sulfur, hydrogen, and oxygen atoms in red, green, and blue hues.
![Извержение на Солнце](https://images.astronet.ru/pubd/2003/10/27/0001194489/solprom1_eit_big.preview.jpg)
18.09.1997
On August 27th twisting magnetic fields propelled this huge eruptive prominence a hundred thousand miles above the Sun's surface. The seething plasma of ionized gases is at a temperature of about 150,000 degrees Farenheit and spans over 200,000 miles (about 27 Earths).
![Облака в БМО](https://images.astronet.ru/pubd/2018/01/19/0001396445/LMC_RGBNB-Don-Josep5-Cc1024.preview.jpg)
18.01.2018
An alluring sight in southern skies, the Large Magellanic Cloud (LMC) is seen in this deep and detailed telescopic mosaic. Recorded with broadband and narrowband filters, the scene spans some 5 degrees or 10 full moons. The narrowband filters are designed to transmit only light emitted by hydrogen, and oxygen atoms.
![Убегая с Солнца](https://images.astronet.ru/pubd/2003/08/18/0001192424/sep14prom_eit.preview.jpg)
19.11.1997
Twisted magnetic fields arching from the solar surface can trap ionized gas, suspending it in huge looping structures. These majestic plasma arches are seen as prominences above the solar limb. On September 14, this...
![NGC 7635: туманность Пузырь](https://images.astronet.ru/pubd/2004/08/13/0001199143/ngc7635_pt_big.preview.jpg)
16.11.1998
What created this huge space bubble? A massive star that is not only bright and blue, but also emitting a fast stellar wind of ionized gas. The Bubble Nebula is actually the smallest...
![Глубокая Лагуна](https://images.astronet.ru/pubd/2023/09/28/0001909251/M8-Mos-SL10-DCPrgb-st-154-cC-cr1024.preview.jpg)
27.09.2023
Ridges of glowing interstellar gas and dark dust clouds inhabit the turbulent, cosmic depths of the Lagoon Nebula. Also known as M8, The bright star forming region is about 5,000 light-years distant. It makes for a popular stop on telescopic tours of the constellation Sagittarius toward the center of our Milky Way Galaxy.
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