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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03:27
THE COLDEST JANUARY OF YOUR LIFE!?* and Double X-Class flare from a Super Active Sun on Sunday!
Added 59 Views / 0 Likesthank you for being amazing.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewisonhttps://www.patreon.com/thornews
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James Webb Space Telescope amazing view of protostar explained by NASA
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What’s Behind This Door? – Prototype Immersive Technologies (PIT) Lab
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Zoom Video: HH49/50
Added 59 Views / 0 LikesThis video takes the viewer on a journey to Herbig-Haro 49/50, an outflow from a nearby still-forming star, in high-resolution near- and mid-infrared light with the NIRCam and MIRI instruments. The intricate features of the outflow, represented in reddish
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09:03
Blastoff! SpaceX launches first Starlink batch of 2025, nails landing
Added 58 Views / 0 LikesA SpaceX Falcon 9 rocket launched 24 Starlink satellites from Cape Canaveral Space Force Station on Jan. 6, 2025 at 3:43 p.m ET (2043 GMT). It was the first Starlink satellite launch of 2025. The Falcon 9's first stage returned to Earth about eight minute
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Pan: UGC 10043
Added 58 Views / 0 LikesWhat kind of astronomical object is this? It doesn’t look quite like the kinds of galaxies, nebulae, star clusters or galaxy clusters which Hubble normally brings us images of. In fact, this is a spiral galaxy, named UGC 10043 — we just happen to be seein
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NASA Astronauts 2024 Reverse Fan Mail
Added 58 Views / 0 LikesReverse fan mail! ???? We surprised unsuspecting @NASA_Johnson staff with heartfelt letters and a big reveal to show our gratitude. ???? They are the true heart of every mission, and we couldn’t do it without them. ❤️
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RED ALERT! Houston Christmas Eve Tornado Warnings!? Volcanoes Gone Wild! Santa Cruz Pier Destroyed!
Added 58 Views / 0 Likeswild.also, Merry Christmas, y'all.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewisonhttps://www.patreon.com/thornews
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See the Moon Phases from south up in 2025 full-year time-lapse
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00:58
Blue Origin New Glenn #launch #space #spaceflight #rocketlaunch @LoganSpaleta #music
Added 58 Views / 0 LikesBlue Origin launched the powerful New Glenn rocket for the first time from Cape Canaveral Space Force Station in Florida on Jan. 16, 2025. Video features the new song "Just a kiss" by @LoganSpaleta.Footage courtesy: Blue Origin
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Chinese astronauts welcome Year of the Snake in space
Added 58 Views / 0 LikesChina's Shenzhou-19 astronauts sent their Lunar New Year greetings home from the nation's Tiangong space station to welcome in the Year of the Snake.SOUNDBITE (Chinese) Shenzhou-19 space mission crew:"We are in the space home of the Chinese people, wishin
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11:03
Blastoff! NASA's Jonny Kim and 2 cosmonauts launch to ISS aboard Soyuz rocket
Added 58 Views / 0 LikesNASA's Jonny Kim along with Russia's Sergey Ryzhikov and Alexey Zubritsky, launched to the International Space Station atop a Soyuz 2.1a rocket from Russia's Baikonur Cosmodrome in Kazakhstan on April 8, 2025 at 1:47 a.m. EDT (0547 GMT or 10:47 a.m. local
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Pan video: NGC 1514 (MIRI image)
Added 58 Views / 0 LikesThe NASA/ESA/CSA James Webb Space Telescope has taken the most detailed image of planetary nebula NGC 1514 to date thanks to its unique mid-infrared observations. Webb shows its rings as “fuzzy,” intricate clumps of dust. It’s also easier to see holes pun
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08:58
NASA's SpaceX Crew-9 with Starliner astronauts undocks from space station for return trip
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SpaceX fires up flight 7 Starship in preparation for launch
Added 57 Views / 0 LikesSpaceX conducted a static fire test of their flight 7 Starship on Dec. 15, 2024. The test occurred at Starbase in south Texas.Credit: Space.com | footage courtesy: SpaceX | edited by [Steve Spaleta](https://x.com/stevespaleta)
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Star cluster resembles 'cosmic wreath' in Chandra X-ray Telescope tour for holidays
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Watch live! SpaceX to launch Starship megarocket on Flight 7 test mission
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More Los Angeles Wildfire Evacuation Orders More Southern Snow & Ice! Hawaii Storms & Planet Parade!
Added 57 Views / 0 LikesThank you for being super cool and kind.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewisonhttps://www.patreon.com/thornews
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00:58
SpaceX Starship Flight 7 #booster #catch @LoganSpaleta #music #launch #spaceflight #chopsticks
Added 57 Views / 0 LikesSpaceX launched the seventh test flight of the Starship megarocket from Starbase in Texas on Jan. 16, 2025. Starship's Super Heavy booster successfully separated, and returned to Earth and was caught by the "chopsticks" on the launch tower. Video features
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05:32
Space to Ground: All Heart: Feb. 14, 2025
Added 57 Views / 0 LikesNASA's Space to Ground is your weekly update on what's happening aboard the International Space Station. Got a question or comment? Use #AskNASA to talk to us.Learn more about the important research being operated on Station:https://www.nasa.gov/iss-scien