Outer Space & Universe
Outer Space & Universe
Space, also known as outer space, is the near-vacuum between celestial bodies. It is where everything (all of the planets, stars, galaxies and other objects) is found.
On Earth, space begins at the Kármán line (100 km above sea level). This is where Earth's atmosphere is said to stop and outer space begins. This is not a firm boundary but is a convention used by scientists and diplomats.
Items in space are free to move back and forth; up and down; and left and right. These three dimensions are what make 3D space. Items also move forward through time, which is sometimes called the fourth dimension.
The majority of space contains very little matter and so most of it is a vacuum. Scientists do not know how big space is but we do know that space is extremely big, and is always expanding.
According to the big bang theory, all matter and energy in the Universe was compressed into a very small space. Then it exploded and started expanding. Space is still growing in size today; this means the distance from one galaxy to distant galaxies is getting longer.
Gravity is the force that keeps the Moon in orbit around the Earth and the planets in orbit around the Sun. Gravity can stretch and bend space similar to how a heavy ball placed on a stretched sheet of rubber will cause the rubber to stretch. The scientist who discovered that space can bend is named Albert Einstein. How gravity bends space is part of his theory of general relativity.
Astronauts, Cosmonauts, Taikonauts and Spationauts
An astronaut is any person who is trained by NASA to travel and perform tasks in space. Although the space traveler may not necessarily be a United States citizen, each astronaut does go through a rigorous training regiment by the National Aeronautics and Space Administration. Other space travelers go by other names then astronaut depending on their country of origin.
In the United States, astronaut is derived from the Greek words ástron (star) and nautis (sailor). While, in Russia, a space traveler goes by the name космонавт (English: cosmonaut), which is derived from the Greek words kosmos (universe) and nautis (sailor). Westerners call a space traveler from China a taikonaut, based on the 1998 writings of Chiew Lee Yik and Chen Lan where the term tàikōng (great emptiness), Chinese for “space”. In China, the term yuháng yuán (universe navigator) is used for space traveler.
Only the United States of America (United States), Russia (earlier, the Union of Soviet Socialist Republics), and the People’s Republic of China (China) have sent manned spacecraft into space. Other countries have assisted these countries by sending their own space travelers on space missions. For instance, a French space traveler is called a spationaut (from the French word spationaute), which is derived from the Latin spatium (space) and Greek nautis (sailor). (plural in Greek nautes = sailors)
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Pan: Dim, but still distinct
Added 32 Views / 0 LikesA spiral galaxy, with two prominent arms that are tightly wound around the brighter core. The arms disperse into a wide halo of stars and dust at their ends, giving the galaxy an oval shape. It is flanked by a number of bright stars in the foreground, eac
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RED ALERT! Internet* Shutdown!?* Severe Weather USA TH & F! PR Fireball! TUMBLEWEED MADNESS!
Added 32 Views / 0 Likesstay cool.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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Relive SpaceX Starship's epic third launch in two-minute time-lapse
Added 32 Views / 0 LikesSpaceX launched Starship on Integrated Flight Test 3 from their Starbase facility in South Texas on March 14, 2024. Full Story: https://www.space.com/spacex-starship-third-test-flight-launchCredit: SpaceX | time-lapse edited by Space.com's Steve Spaleta (
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Pan of LEDA 42160
Added 32 Views / 0 LikesThis image shows LEDA 42160, a galaxy about 52 million light-years from Earth in the constellation Virgo. The dwarf galaxy is one of many forcing its way through the comparatively dense gas in the Virgo cluster, a massive cluster of galaxies. The pressure
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SpaceX CRS-30 mission to space station - Science payloads explained
Added 32 Views / 0 LikesLearn what science payloads are being shipped aboard Cargo Dragon to the International Space Station on the SpaceX CRS-30 mission.Credit: NASA
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Blastoff! SpaceX launches 30th cargo mission to space station, nails landing
Added 32 Views / 0 LikesA SpaceX Falcon 9 rocket carrying an uncrewed Cargo Dragon spacecraft launched from Space Launch Complex-40 (SLC-40) at Cape Canaveral Space Force Station in Florida on March 21, 2024 at 4:55 p.m. EDT (2055 GMT). The mission, known as CRS-30, will be the
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Pan video: Arp 72
Added 32 Views / 0 LikesThis image features Arp 72, a very selective galaxy group that only includes two interacting galaxies: NGC 5996 (the large spiral galaxy) and NGC 5994 (its smaller companion, in the lower left of the image). Both galaxies lie approximately 160 million lig
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RED ALERT! 5.5 NY Earthquake! 3* Days of Total Solar Eclipse* Storms! Comet PWNS-Brooks Brightens!
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2024 solar eclipse! Totality over Ohio, New York and Maine in 2-minute time-lapse
Added 32 Views / 0 LikesSee totality occur over Ohio, New York and Maine in these time-lapsed views. Live Updates: https://www.space.com/news/live/solar-eclipse-live-updatesCleveland, OhioCredit: Salvatore Oriti of NASA Glenn Research CenterTupper Lake, New YorkCredit: Seth McGo
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Near-Earth Asteroids Discovered To Date | Planetary Defense: By the Numbers April 2024
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Blastoff! SpaceX launches new Starlink batch from Florida
Added 32 Views / 0 LikesA SpaceX Falcon 9 rocket launched 23 Starlink satellites from NASA's Kennedy Space Center in Florida on April 17, 2024 at 5:26 p.m. EDT (2126 GMT). Full Story: https://www.space.com/spacex-starlink-launch-group-6-51Credit: SpaceX
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Pan: So near, or so far?
Added 31 Views / 0 LikesA field full of distant galaxies on a dark background. Most of the galaxies are very small, but there are a few larger galaxies and some stars where detail can be made out. In the very centre there is an elliptical galaxy with a brightly glowing core and
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Watch live! Ax-3 crew bids farewell to space station ahead of SpaceX Dragon flight home
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RED ALERT! 1st* Ever Hurricane Wind Warnings up for parts of California as a Heart shape storm hits!
Added 31 Views / 0 LikesI hope you are having a wonderful weekend.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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SpaceX Starship’s 2nd flight footage released under Freedom of Information Act - See it all!
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Milky Way's black hole may be spinning 'football-shaped' spacetime warp
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Russia launches Kosmos 2575 military satellite atop Soyuz rocket
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Doomed ERS-2 satellite spotted over Italy and from space ahead of deorbit
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Space Perspective unveils high-altitude balloon capsule for test flights to edge of space
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