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Hydrogen wall discovered in space
Voyager Finds Magnetic Foam at Solar System’s Edge
New Horizons space probe spotted ultraviolet glow, which, seems to be coming due to edges of the solar system. it glow can come from a wall of hydrogen that arises in moment, when the influence of the sun becomes as weak as possible.
Even before New Horizons flew past Pluto in 2015, the space probe scanned the sky with an ultraviolet telescope. FROM his help scholars hoped to find signs of a hydrogen wall. As the sun moves through the galaxy, it produces a constant stream of charged particles called the solar wind. It is he who inflates «bubble» around the solar system, called the heliosphere.
Right over the edge of this bladder, about 100 times farther from the Sun than the Earth, uncharged hydrogen atoms in interstellar space have the ability to slow down when colliding with particles of the solar wind. Accordingly, the phenomenon of the so-called wall must scatter ultraviolet light in a special way..
It is known that two ships «Voyager» saw signs of similar light scattering 30 years ago.
Surveying Pluto’s surface with New Horizons
«New horizons» — the first spacecraft to be honored to double-check the observations of its predecessors. He scanned ultraviolet light seven times from 2007 to 2017. In time flight of the spacecraft, it changed in accordance with observations of ten years ago. All spaceships saw more ultraviolet light farther from the sun, than expected. but, despite confidence in Tom, what the phenomenon in reality is an effect confirming the existence of the wall, team warns that the light also may come from an unknown source further in the galaxy.
text: Evgeniya Likhodey, a photo: Kevin Gill / Wikimedia, NASA / RT