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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01:02
Large Fireball Seen Streaking Over Ohio | Video
Added 723 Views / 0 LikesA meteoroid traveling at ~114,000 mph, slammed into Earth's atmosphere almost directly over Columbus, Ohio. It was visible from 14 U.S. States. NASA's all-sky camera in Hiram, Ohio captured the fireworks at 11:33pm EDT on Sept. 27th, 2013. (looped) Read m
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01:10
Large object impacts Jupiter! Captured by Planetary Observation Camera
Added 157 Views / 0 LikesThe Planetary ObservatioN Camera for Optical Transient Surveys (PONCOTS) at Kyoto University was used to capture an object impacting Jupiter on Oct. 15, 2021. Credit: Space.com | footage courtesy: OASES / PONCOTS / Ko Arimatsu | edited by [Steve Spaleta](
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Large Object Slams Into Jupiter - Seen From Earth
Added 375 Views / 0 LikesAstrophotographer Ethan Chappel (https://www.chappelastro.com) had the fortune of capturing a large object, likely an asteroid, slam into Jupiter on Aug. 7, 2019. -- See Jupiter Get Bashed in 2016: https://www.space.com/32411-jupiter-hit-by-comet-asteroid
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Large Pinatubo Volcano eruption, Philippines? 4 Sunspots. Australia to Dox Trolls & Bad Turkey Storm
Added 139 Views / 0 Likesthank you asteroid fight club.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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01:09
Large Space Rock To Zip Between Earth and Moon | Orbit Animation
Added 717 Views / 0 LikesAsteroid 2014 DX110 will come within 218,000 miles of Earth on its closest approach on March 5th, 2014. Its about 90 feet-wide.
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01:03
Large trash bag jettisoned from Space Station using 'new capability'
Added 70 Views / 0 LikesESA astronaut Samantha Cristoforetti delivered video of a new technique of disposing of trash on the International Space Station. The "big trash bag was jettisoned from a depressurized airlock on the station & it burned up harmlessly in the Earth's atmosp
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Largest 'Supermoon' Since '48 Will Not Be This Close Again Until 2034 | Video
Added 396 Views / 0 LikesLargest 'Supermoon' Since '48 Will Not Be This Close Again Until 2034 | Video
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01:45
Largest black hole found yet revealed through gravitational lensing
Added 97 Views / 0 LikesLearn how a "black hole 30 billion times the mass of the sun in a galaxy 2 billion light years away" using gravitational lensing, according to Durham University. Full Story: https://www.space.com/largest-known-black-hole-discovered-through-gravitational-l
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Largest Black Hole To Ever Get Caught Shredding A Star Discovered | Simulation
Added 749 Views / 0 LikesLargest Black Hole To Ever Get Caught Shredding A Star Discovered | Simulation
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01:35
Largest Einstein ring discovered yet in new Hubble imagery
Added 148 Views / 0 LikesA Hubble Space Telescope of a galaxy in the constellation Fornax has revealed "d one of the most complete Einstein rings ever discovered," according to NASA's Goddard Space Flight Center. Video credit: NASA's Goddard Space Flight Center Paul Morris: Lead
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Largest main-belt asteroids captured by Very Large Telescope
Added 201 Views / 0 Likes42 asteroids that reside the asteroid belt have been imaged using the European Southern Observatory's Very Large Telescope.Credit: ESO
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02:44
Largest Parachute to One Day Fly on Mars Tested on Earth
Added 371 Views / 0 LikesEurope's ExoMars mission parachute was successfully tested in Kiruna, Sweden in March 2018. Credit: ESA
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Largest Unnamed Solar System Body Spied By Space Telescope | Video
Added 655 Views / 0 LikesLargest Unnamed Solar System Body Spied By Space Telescope | Video
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56:02
Las Tormentas del Sistema Solar
Added 193 Views / 0 Likes¡Estamos en directo! Disfruta de una animada discusión con científicos de la NASA sobre los diversos climas, meteorologías y ambientes de los planetas del Sistema Solar y mas allá. Envía tus preguntas con #preguntaNASA
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02:31
Laser comms demo satellite & Space Force payloads launched atop Altas V
Added 66 Views / 0 LikesA United Launch Alliance (ULA) Atlas V rocket launched the Space Test Program-3 (STP-3) mission on Dec. 7, 2021 from Cape Canaveral Space Force Station in Florida. [Full Story](https://www.space.com/atlas-v-rocket-launches-nasa-laser)It was carrying a pai
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Laser Communications Could Be 10 to 100X Faster - New NASA Mission | Video
Added 621 Views / 0 LikesLaser Communications Could Be 10 to 100X Faster - New NASA Mission | Video
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02:22
Lasers to deliver 4K streaming beyond Earth orbit? NASA demo in space will test
Added 149 Views / 0 LikesNASA Laser Communications Relay Demonstration (LCRD) will launch on a Department of Defense spacecraft. Learn more about its possible high speed data delivery. Credit; NASA Goddard Space Flight Center
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01:23
Last 5 Years Hottest on Record, 2018 Ranks 4th
Added 293 Views / 0 Likes2018 is officially the 4th hottest year on record according to data collected by NASA and NOAA. Credit: NASA/GSFC
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01:22
Last 500 years around Milky Way's supermassive black hole in amazing visualization
Added 312 Views / 0 LikesUsing Chandra X-ray Telescope data, the last 500 years of an area about 3 light years (18 trillion miles) around the supermassive black hole Sagittarius A* at the center of the Milky Way galaxy has been visualized. Credit: NASA/CXC/Pontifical Catholic Uni
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03:18
last day of 2018 - Weather & World Feelings - part 1 - Solar Unity
Added 206 Views / 0 LikesMY FEELSGod Bless Everyone,Thttps://www.paypal.me/THORnews@newTHOR on twitterhttps://www.facebook.com/thornewsgo