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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02:36
Space to Ground: Power Walking: 03/29/2019
Added 220 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 #spacetoground to talk to us.Learn more about the important research being operated on Station:https://www.nasa.gov/iss
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00:56
Spacewalkers Set Up Work Site Over Atlantic Ocean - EVA 53
Added 367 Views / 0 LikesNASA astronauts Christina Koch and Nick Hague are upgrading batteries outside the International Space Station on Mar. 29, 2019. -- Watch the Spacewalk Live: https://www.space.com/Credit: NASA
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10:41
Blastoff! Electron Rocket Launches DARPA's R3D2
Added 352 Views / 0 LikesRocket Lab's Electron rocket launched the Radio Frequency Risk Reduction Deployment Demonstration (R3D2) spacecraft for the U.S. Defense Advanced Research Projects Agency (DARPA). It launched from New Zealand's Māhia Peninsula today (March 28) at 7:27 p.
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00:50
Gault within the solar system
Added 391 Views / 0 LikesThis animation demonstrates the orbital characteristics of the asteroid 6478 Gault that is located 214 million miles from the Sun, between the orbits of Mars and Jupiter.More information and download options: http://www.spacetelescope.org/videos/heic1906a
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00:26
Active Asteroid 6478 Gault Snapped by Hubble
Added 336 Views / 0 LikesAsteroid 6478 Gault is ~2.5-5.5 miles (4–9 kilometers) wide and has "two narrow, comet-like tails of debris," according to ESA/NASA. The Hubble Space Telescope was used to capture image of it. Credit: NASA, ESA, K. Meech and J. Kleyna (University of Hawai
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00:58
SpaceIL's Beresheet Spacecraft Snaps Sunrise, Deploys Legs
Added 349 Views / 0 LikesThe SpaceIL's Beresheet spacecraft captured a sunrise while orbiting Earth. It also deployed its landing legs. -- SpaceIL's Beresheet Lunar Lander: Israel's 1st Trip to the Moon: https://www.space.com/spaceil-beresheet.htmlCredit: Space.com / footage cour
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02:41
STEMonstrations: Solar Energy
Added 333 Views / 0 LikesSolar energy is a key element in keeping the International Space Station functional as it provides a working laboratory for astronauts in the unique microgravity environment. Astronauts rely on this renewable energy source to power the electronics needed
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01:09
‘Sit’ in the Position of Milky Way’s Supermassive Black Hole - Visualization
Added 401 Views / 0 LikesA new 3D visualization has been created of the center of the Milky Way Galaxy as viewed from the position of the black hole Sagittarius A*. -- Visit the Heart of the Milky Way in This 360-Degree, 4K Simulation: https://www.space.com/milky-way-heart-360-de
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02:48
Lunar Rover Ride - Apollo 16 Astronaut Describes Experience
Added 338 Views / 0 LikesNASA astronaut Charles Duke was the navigator of the Lunar Roving Vehicle (LRV) on the Apollo 16 mission. He describes how the rover handled on the lunar surface at the 115th Explorers Club Dinner in Mar. 2019. The Risk of Apollo: Astronauts Swap Harrowin
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20:21
Week Long Storm End Of March
Added 218 Views / 0 LikesMy laptop ain't working so I am doing the best I can with what I got. Https://www.paypal.me/thornews
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05:16
Almost Stranded on Moon: Buzz Aldrin Talks Circuit Breaker Issue
Added 323 Views / 0 LikesAt the 115th Explorers Club Dinner, Apollo 11 astronaut Buzz Aldrin talks about a circuit breaker issue aboard the lunar module while he and Neil Armstrong were on the moon. -- The Risk of Apollo: Astronauts Swap Harrowing Tales from NASA's Moon Shots:htt
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22:06
Big problems
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02:29
Space to Ground: Stepping Out: 03/22/2019
Added 355 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 #spacetoground to talk to us.Learn more about the important research being operated on Station:https://www.nasa.gov/iss
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07:59
FV-3 FLOODING DOOM or Glitch? BIG FLOODING PROBLEMS through May regardess
Added 296 Views / 0 LikesI'm live af rn.https://www.paypal.me/THORnews T
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18:57
Bombogenesis Nor'Easter & MAJOR USA FLOOD & INFRASTRUCTURE PROBLEMS AHEAD
Added 329 Views / 0 Likesit's ugly out there and it's going to get uglier.Happy Astrological & Astronomical New Year & Spring.God bless everyone,Thttps://www.paypal.me/THORnews@newTHOR on twitterhttps://www.facebook.com/thornewsgo
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01:04
Red Bull Wingsuit Skydivers Blaze By Supermoon
Added 316 Views / 0 LikesRed Bull Air Force wingsuit skydivers dove out of a helicopter flying 4000 feet (1219 m) above Los Angeles, CA on Mar. 20, 2019. They started their dives when the Supermoon was rising. Credit: Space.com / footage courtesy Red Bull Air Force / produced and
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01:05
Declining Sea Ice Trend Continues - NASA Confirms in 2019
Added 311 Views / 0 LikesMeasurements of Arctic Sea ice by NASA in 2019 confirms that it is still trending downwards. The maximum extent of the ice did not break the record this year unlike the last 4 years but “it continued a trend of declining sea ice maximums and minimums,” ac
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09:09
Major Midwest Flooding. Wave after Wave after Wave. Volcano & Earthquake Signals.
Added 370 Views / 0 Likesit's getting more interesting everyday.God bless everyone,Thttps://www.paypal.me/THORnews
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02:13
Apollo 11's Michael Collins Was Not Lonely, Worried About Mice
Added 318 Views / 0 LikesAt the 115th Explorers Club Dinner in New York City, NASA astronaut jokingly talked about not being lonely while Neil Armstrong and Buzz Aldrin were on the moon. He also expressed concern about the mice that accompanied them in quarantine after the missio