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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01:19
Radio Telescope Reveals Hundreds Of Hidden Galaxies Behind Milky Way's Haze | Video
Added 599 Views / 0 LikesRadio Telescope Reveals Hundreds Of Hidden Galaxies Behind Milky Way's Haze | Video
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00:50
Zoom Into NGC 2276
Added 118 Views / 0 LikesThis video showcases a zoom into the galaxy NGC 2276, a spiral galaxy 120 million light-years away in the constellation of Cepheus.More information and download options: http://esahubble.org/videos/heic2106a/Credit:ESA/Hubble, NASA, Digitized Sky Survey 2
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03:17
New Earth-Size Planet Could Have Water | Video
Added 709 Views / 0 LikesPlanet-hunters have new evidence of a planet, about 1.1x Earth's size, in orbit around another star. Kepler 186f, the outermost world of a 5-planet system, revolves about 3x closer to its star than Earth does to our Sun. Full Story: http://goo.gl/1fUSo0
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05:08
Is Arthur Hurricane Sandy 2.0? Models are hinting Maybe, bro. Maybe.
Added 334 Views / 0 LikesI call them like I see them.plus this falls right in as our Venus Retrograde storm.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.co
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04:06
Exploring the Moon's permanently shadowed regions with "ShadowCam"
Added 76 Views / 0 LikesTh Korean Pathfinder Lunar Orbiter's NASA-funded instrument ShadowCam has delivered its first image of a permanently shadowed region of the moon. See the image and learn about the instrument here. Credit: Arizona State UniversityMusic: Clearer Views by Fr
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05:33
Maximum Grand Solar Minimum & the Endless parade of Severe Storms of May USA
Added 358 Views / 0 LikesMayday 17. The Earth has seen 3 solar storms in a row & now we've got a non stop series of storms from coast to coast from here until Atlantic Hurricane Season begins. Buckle up, buttercup. We are going for a wild ride into the future! God bless everyone,
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11:14
Blastoff! SpaceX launches Space 40-satellite rideshare mission, nails landing
Added 155 Views / 0 LikesA Falcon 9 rocket launched the Transporter 4 mission from Space Launch Complex 40 (SLC-40) at Cape Canaveral Space Force Station in Florida on April 1, 2022. It carried "40 spacecraft, including CubeSats, microsats, picosats, and non-deploying hosted payl
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35:59
CRS-10 Hosted Webcast
Added 454 Views / 0 LikesSpaceX is targeting a late morning launch of its tenth Commercial Resupply Services mission (CRS-10) from Launch Complex 39A (LC-39A) at NASA’s Kennedy Space Center in Florida. The instantaneous launch window is on Saturday, February 18 at 2:39 p.m. UTC /
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06:48
Space Station Live: African American History Month
Added 571 Views / 0 LikesSpace Station Live: African American History Month
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07:54
the Ransomware Supply Chain breakdown Economy of 2021 is so weird & continues to escalate.
Added 133 Views / 0 LikesSaudi Arabia's stock market shut down today on a glitch*.T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnews$THORnews on CashApphttps://www.patreon.com/thornews
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08:22
RED ALERT! Tornado Watch for Florida & Georgia! Nor'Easter Winter Warning for NE USA!
Added 49 Views / 0 Likesand Geomagnetic Storm watch!God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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08:03
Starburst Dwarf Galaxies Played Big Role In Early Universe | Video
Added 768 Views / 0 LikesStarburst Dwarf Galaxies Played Big Role In Early Universe | Video
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01:10
SpaceX Demo-2 rocket rolled out to launch pad
Added 482 Views / 0 LikesThe SpaceX Demo-2's Crew Dragon spacecraft and Falcon 9 rocket were rolled out to the launch pad at Launch Complex 39A at Kennedy Space Center in Florida on May 21, 2020. It is scheduled to launch NASA astronauts Bob Behnken and Doug Hurley to the Interna
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02:34
Space to Ground: Saluting an Icon: 05/31/2019
Added 206 Views / 0 LikesNASA's Space to Ground is your weekly update on what's happening aboard the International Space Station. Got a question or comment? Use #AskNASA to talk to us.Learn more about the important research being operated on Station:https://www.nasa.gov/iss-scien
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13:06
SpaceX launches 1st all-private Axiom crew to space station, nails landing
Added 145 Views / 0 LikesAxiom Space AX-1 crew Michael López-Alegría (commander), Larry Connor (pilot), Mark Pathy (mission specialist) & Eytan Stibbe (mission specialist) launched to the International Space Station atop a SpaceX Falcon 9 on April 8, 2022.Credit: Space.com
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52:51
World’s First Reflight of an Orbital Class Rocket | SES-10 Technical Webcast
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08:32
Red Alert! TWO Hurricanes/TS/Depressions in the GOM in the middle of June? & More wild weather.
Added 156 Views / 0 Likesoh the next 2 weeks will be wild.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnews$THORnews on CashApphttps://www.patreon.com/thornews