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outer space

Outer space, or just space, is the expanse that exists beyond the Earth and between celestial bodies. Outer space is not completely empty—it is a hard vacuum containing a low density of particles, predominantly a plasma of hydrogen and helium as well as electromagnetic radiation, magnetic fields, neutrinos, dust, and cosmic rays. The baseline temperature, as set by the background radiation from the Big Bang, is 2.7 kelvins (K) (−270.45 °C; −454.81 °F). The plasma between galaxies accounts for about half of the baryonic (ordinary) matter in the universe; it has a number density of less than one hydrogen atom per cubic metre and a temperature of millions of kelvins; local concentrations of this plasma have condensed into stars and galaxies. Studies indicate that 90% of the mass in most galaxies is in an unknown form, called dark matter, which interacts with other matter through gravitational but not electromagnetic forces. Observations suggest that the majority of the mass-energy in the observable universe is a poorly understood vacuum energy of space, which astronomers label dark energy. Intergalactic space takes up most of the volume of the Universe, but even galaxies and star systems consist almost entirely of empty space.. Outer space does not begin at a definite altitude above the Earth's surface. However, the Kármán line, at an altitude of 100 km (62 mi) above sea level, is conventionally used as the start of outer space in space treaties and for aerospace records keeping. The framework for international space law was established by the Outer Space Treaty, which entered into force on 10 October 1967.
Galaxy wow - galaxy on litters
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Galaxy wow

Added 2 weeks ago by MAJAMA

21

ASTRONAUTES IN SPACE - ASTRONAUTS TRAVELING IN THE SPACE
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ASTRONAUTES IN SPACE

Added 2 months ago by MANU

16

Aurora borealis - northern lights, natural phenomena
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Aurora borealis

Added 3 months ago by sandra

114

Landscape - colorful jigsaw puzzle
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Landscape

Added 3 months ago by andi

174

antimatter - man and antimatter, antimatter and man
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antimatter

Added 3 months ago by człowiek

12

rock formations - rocks, desert, stars, sky
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rock formations

Added 3 months ago by sandra

46

szczerbatek - blah blah blah blah blah blah blah blah blah blah blah
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szczerbatek

Added year ago by ania

25

szczerbatek - blah blah blah blah blah blah blah blah blah
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szczerbatek

Added year ago by ania

8

szczerbatek - vbnmofdpgshipgfsiofgweofhwedfmngdjgoghege
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szczerbatek

Added year ago by ania

11

Landscape - colorful jigsaw puzzle
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Landscape

Added year ago by andi

151

Landscape - colorful jigsaw puzzle
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Landscape

Added year ago by andi

91

Volcano eruption - lorem ipsum dolor sit amet
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Volcano eruption

Added year ago by Ayla

46

View from space - colorful jigsaw puzzle
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View from space

Added year ago by andi

67

landscape - colorful puzzle jigsaw
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landscape

Added year ago by natalia

159

wonders of nature - amazing wonders of nature and man
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wonders of nature

Added year ago by żaba

162

pets and animals - beautiful animals and even more beautiful
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pets and animals

Added year ago by żaba

20

Fantastic - colorful puzzle jigsaw
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Fantastic

Added year ago by andi

91

A bit of space - puzzle with a cosmic painting
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A bit of space

Added year ago by andi

70

SISTEMA SOLARE - e il sistema che comprende il sole come stella e and pianeti che gli girano intorno
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SISTEMA SOLARE

Added year ago by maestra

28

cosmos, mars - landscape of the cosmos earth mars
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cosmos, mars

Added year ago by Marti

124

asteroid - the asteroid nearly hit the ground
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asteroid

Added year ago by Marti

165

Jigsaw puzzle - symmetrical compilation
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Jigsaw puzzle

Added year ago by andi

37

Abstraction - abstract tree in a sphere
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Abstraction

Added year ago by andi

27

piece wow - Piesel in space wow
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piece wow

Added year ago by marta

49

star wars - this puzzle is very easy
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star wars

Added year ago by Jaś

72

nebulosa - nebulosa del granchio
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nebulosa

Added year ago by carla

164

galaxy tree - The picture shows a tree against the background of the night sky
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galaxy tree

Added year ago by Lil

116 1

Swinica at night - A keystone in the main ridge of the High Tatras with two peaks, varying in height by 10 m. The shape
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Swinica at night

Added year ago by aldona

116 1

Beautiful night - Road in the glow of the moon
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Beautiful night

Added year ago by ewunia x

202

full moon - mountains in the moonlight
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full moon

Added year ago by ewunia x

249

magnificent tree - night landscape with a tree
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magnificent tree

Added year ago by ewunia x

166 2

Earth Day - Earth Day - solve the puzzle
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Earth Day

Added year ago by Julka

62

Earth Day - Earth day, place a puzzle.
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Earth Day

Added year ago by Julek

52 2

Anime Girl - Wallpaper Anime Girl
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Anime Girl

Added year ago by Sumiko Ayaka

7