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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Hubblecast 96: How many galaxies are there?
Added 603 Views / 0 LikesHubblecast 96: How many galaxies are there?
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The El Nino Pulse: Weird Weather Watch
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Space to Ground: History's Greatest Adventure: 07/19/2019
Added 305 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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See Virgin Galactic Unity 22 with Richard Branson soar to space and back!
Added 179 Views / 0 LikesSee Richard Branson and fellow mission specialists Sirisha Bandla, Colin Bennett and Beth Moses launch to suborbital space aboard Virgin Galactic Unity. Full Story: https://www.space.com/virgin-galactic-unity-22-branson-flight-successCredit: Virgin Galact
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Added 279 Views / 0 LikesThis image from the NASA/ESA Hubble Space Telescope depicts NGC 7027, or the “Jewel Bug” nebula. The object had been slowly puffing away its mass in quiet, spherically symmetric or perhaps spiral patterns for centuries — until relatively recently when it
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See James Webb Space Telescope's view of Wolf-Rayet star WR 124 in stunning 4K
Added 80 Views / 0 LikesA 'prelude to a supernova' is how NASA describes this stunning new James Webb Space Telecope image of Wolf-Rayet Star WR 124. Travel 15,000 light years in this zoom-in to see the amazing look. Credit: NASA, ESA, CSA, STScI, Webb ERO Production Team, DSS,
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One Big Black Hole - 140 Million Times Our Sun’s Mass! | Video
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Private Chinese Company Launches Hyperbola-1 Rocket For 1st Time
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James Webb Space Telescope imagery is stunningly sharper than Spitzer's view of galaxy
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Falcon Heavy & Starman
Added 414 Views / 0 LikesWhen Falcon Heavy lifted off, it became the most powerful operational rocket in the world by a factor of two. With the ability to lift into orbit nearly 64 metric tons (141,000 lb)---a mass greater than a 737 jetliner loaded with passengers, crew, luggage
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your face.
Added 168 Views / 0 Likessubtitled: womenfriday night rebel programing has returned.God bless everyone.T
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Added 33 Views / 0 LikesThe United Launch Alliance's (ULA's) Delta IV heavy-lift rocket launched the NROL-70 mission from Space Launch Complex-37 at Cape Canaveral Space Force Station in Florida on April 9 at 12:53 p.m. EDT (1653 GMT). It was the final launch for the historic ro
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Alert! Texas Governor says Texas Lockdown on Table as CoronaVirus Hospitalizations double.
Added 266 Views / 0 LikesWARNING: This Video is intended for Texans. 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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Possible reentry of Chinese rocket stage seen over Texas
Added 86 Views / 0 LikesKylie McMillan submitted this video, taken on March 7, 2023 in the Boquillas Canyon in Texas, of what appears to be a large piece of debris reentering Earth's atmosphere. It could possibly be from a Chinese Long March 2D rocket that launched in June 2022.
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Pluto Grows In New Horizon's 'Color' Lens | Time-Lapse Video
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