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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03:22
Meet NASA Astronaut Nichole Ayers, Crew-10 Pilot
Added 74 Views / 0 LikesNASA astronaut Nichole Ayers is the pilot of NASA’s SpaceX Crew-10 mission. This will be the first spaceflight for Ayers, who became a NASA astronaut in 2021. She is originally from Colorado Springs and Divide, Colorado. Ayers earned a bachelor’s degree i
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03:11
Chandra X-ray Obsevatory at 25 - See amazing 'never-before-seen' views'
Added 73 Views / 0 LikesThe Chandra X-ray Obsevatory was launched on July 23, 1999 aboard Space Shuttle Columbia. See 25 'never-before-seen' images from the observatory to mark the anniversary. Credit: NASA/CXC/A. Hobart
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00:30
Pan: NGC 3430
Added 73 Views / 0 LikesIn this week’s Hubble Picture of the Week we are treated to a wonderfully detailed snapshot of NGC 3430. A spiral galaxy, it lies 100 million light-years from Earth in the constellation Leo Minor. Several other galaxies are located relatively nearby to th
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01:14
Blastoffs! China's Kuaizhou-1A and Long March-2D rockets launch 10 satellites
Added 73 Views / 0 LikesChina's Long March-2D launched 6 Jilin-1 Kuanfu satellites from the Taiyuan Satellite Launch Center on Sept. 20, 2024. On the same day, a Kuaizhou-1A rocket blasted off with 4 Tianqi satellites from the Xichang Satellite Launch Center. Credit: Space.com |
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00:58
ISS over Hurricane Helene #space #shorts
Added 73 Views / 0 LikesThe International Space Station flew directly over Hurricane Helene on Sept. 26, 2024. [Full Story](https://www.space.com/hurricane-helene-video-from-space-station-nasa-livestream)Major impacts from inland flooding is expected along the path of Helene wel
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02:34
RED ALERT! Category 4 Hurricane Milton! A Lot of Florida Tornadoes! and Two X-Class Solar Flares!
Added 73 Views / 0 LikesIt's a wild situation.Stay safe & stay cool.God bless everyone,T
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08:29
SpaceX Crew-8 exits Dragon capsule with assistance after splashdown
Added 73 Views / 0 LikesSpaceX Crew-8 astronauts Matthew Dominick, Michael Barratt and Jeanette Epps all with NASA and Roscosmos cosmonaut Alexander Grebenkin splashed down in the Gulf of Mexico off the coast of Pensacola, Florida on Friday (Oct. 25) at 3:29 a.m. EDT (0729 GMT).
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14:50
omg wtf Super Mega Monster Hurricane, Hurricanes & Severe WX & Meta Nuke Plant Killer Bees? lol wut.
Added 73 Views / 0 LikesWARNING: YOU MIGHT NOT LIKE WHAT I SAY OR MY TONE OR MY SINGING.and i don't want to make you sad, let you down or ruin your day. so in conclusion, youtube is a viewer beware sport.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-L
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00:59
SpaceX Dragon ISS docking #space Shorts
Added 73 Views / 0 LikesSpaceX's CRS-31 Dragon spacecraft docked with the International Space Station on Nov. 5, 2024. Full Story: https://www.space.com/space-exploration/international-space-station/watch-31st-spacex-dragon-cargo-capsule-arrive-at-the-iss-today
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09:09
RED ALERT! California Mountain Fire! WTF Hurricane Rafael? Volcanoes! & USA 250 Birthday Party!
Added 73 Views / 0 Likesi hope you are doing well.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewisonhttps://www.patreon.com/thornews
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09:02
Blastoff! SpaceX launches 20 Starlink Satellites from California, nails landing
Added 73 Views / 0 LikesA SpaceX Falcon 9 rocket launched 20 Starlink satellite, 13 of which had direct-to-cell capability, from Vandenberg Space Force Base on Aug. 9, 2024 at 1:14 a.m. EST (0514 GMT; 10:14 p.m. Nov. 8 local time). Full Story: https://www.space.com/space-explora
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08:32
PINK ALERT! Louisiana flooding is possible today! 50+ inches of Snow in Colorado!
Added 73 Views / 0 Likesi hope you are well.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewisonhttps://www.patreon.com/thornews
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03:22
Space to Ground: The Art of Space Science: Nov. 22, 2024
Added 73 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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01:09
In Space! See Katy Perry, Gayle King and rest of Blue Origin crew mates fly suborbital
Added 73 Views / 0 LikesAisha Bowe, Amanda Nguyễn, Gayle King, Katy Perry, Kerianne Flynn and Lauren Sánchez launched on Blue Origin's New Shepard rocket to suborbital space and back. Credit: Blue Origin
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00:30
Transition video: Hubble and Webb's views of NGC 2566
Added 72 Views / 0 LikesThe galaxy filling the frame on both sides of this slider tool is NGC 2566, a spiral galaxy located in the constellation Puppis.The first view of the galaxy shown is a new image that is a combination of data from Webb’s MIRI and NIRCam instruments shows o
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01:50
Boeing Starliner's undocking and return to Earth explained - Any risks with thrusters?
Added 72 Views / 0 LikesNASA Commercial Crew program manager Steve Stich explains how Boeing Starliner will undock from the International Space Station and return to Earth. Credit: NASA
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06:35
RED ALERT! Wild Backwards storm to hit North Central USA! Daytime Fireball! Hurricane Watch!
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00:30
Pan: LEDA 857074
Added 72 Views / 0 LikesThis Hubble Picture of the Week features the galaxy LEDA 857074, located in the constellation Eridanus. LEDA 857074 is a barred spiral galaxy, with partially broken spiral arms. It also has a particularly bright spot right in its bar: this is a supernova
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00:30
Pan: UGC 3478
Added 72 Views / 0 LikesLooking past its long spiral arms filled with stars and the dark threads of dust crossing it, your eye might be caught by the shining point at the centre of UGC 3478, the spiral galaxy starring in this Hubble Picture of the Week. This point is the galaxy’
