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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01:00
NASA Mars Insight lander and dust devil tracks seen in time-lapsed orbiter pics
Added 36 Views / 0 LikesNASA's Mars Reconnaissance Orbiter (MRO) has captured several images of the Insight lander on the Red Planet between 2018 and 2024. See a time-lapse of the imagery here. Credit: NASA/JPL-Caltech/University of Arizona
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The BIG Chemtrail* Question!? 7.4 Earthquake Peru! 100 inches of snow & 30+ inches of rain N. Cal!
Added 36 Views / 0 Likeshave a great weekendand stay coolGod bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewisonhttps://www.patreon.com/thornews
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SpaceX explains cause of Starship’s rapid unscheduled disassembly on flight 7
Added 36 Views / 0 LikesThe likely cause for the loss of the flight 7 Starship was a "harmonic response several times stronger in flight than had been seen during testing," according to SpaceX. Learn more about the anomaly and what is being done to correct it for flight 8.Credit
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Starship | Seventh Flight Test
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Demonstrating Rocket Fuel Transfer in Space
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NASA Astronaut Mike Barratt’s Speech at the 2025 Human Research Program Investigators’ Workshop
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Touchdown on moon! Blue Ghost makes history with successful lunar landing
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Space to Ground: On the Station, On the Moon: March 07, 2025
Added 36 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
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NASA's SpaceX Crew-10 takes Tesla ride to rocket for 2nd launch attempt
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Pan: Veil Nebula
Added 36 Views / 0 LikesIn this NASA/ESA Hubble Space Telescope Picture of the Week, Hubble has once again lifted the veil on a famous — and frequently photographed — supernova remnant: the Veil Nebula. This nebula is the remnant of a star roughly 20 times as massive as the Sun
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Pan: NGC 346
Added 36 Views / 0 LikesSay hello to one of the Milky Way’s neighbours! Today’s NASA/ESA Hubble Space Telescope Picture of the Week features a scene from one of the closest galaxies to the Milky Way, the Small Magellanic Cloud (SMC). The SMC is a dwarf galaxy located about 200 0
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Pan: NGC 4941
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NASA fires up X-59 supersonic aircraft's engine in preparation for 1st flight
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Blastoff! SpaceX launches Starlink batch from California, nails landing
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Watch Live! Blue Origin's NS-30 Crewed Mission
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Watch live! SpaceX Starship to launch on ambitious 8th test flight
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Blood moon returns in March 2025! Total lunar Eclipse explained by NASA
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Firefly's Blue Ghost moon landing captured with NASA stereo cameras
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