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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18:13
Starlink Mission
Added 571 Views / 0 LikesOn Sunday, March 15, SpaceX stood down from its launch attempt of Starlink satellites. A standard auto-abort was triggered due to out of family data during engine power check. SpaceX will announce next launch date opportunity once confirmed on the Range.F
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01:00
SpaceX is looking for welders to build Starships
Added 291 Views / 0 LikesSpaceX is looking for welders for the Starship program based in Boca Chica, TX. Find out more at SpaceX.com/careers (https://www.spacex.com/careers). Story: SpaceX's Starship will soon be made of different stuff: https://www.space.com/spacex-starship-new-
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03:11
SpaceX aborts Starlink 5 launch at T-0
Added 354 Views / 0 LikesSpaceX Falcon 9 rocket launch of the Starlink 5 mission was aborted on March 15, 2020 at T-0 seconds. A new launch date will be announced. -- Starlink: SpaceX's satellite internet project: https://www.space.com/spacex-starlink-satellites.htmlCredit: Space
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11:55:01
WATCH LIVE: DARPA Underground Robots competition #SubterraneanChallenge #UrbanCircuitSubT
Added 266 Views / 0 LikesThe DARPA Subterranean (SubT) Challenge Urban Circuit is a robotic competition taking place at Satsop Business Park in Elma, Washington. Eleven teams will compete in the Systems competition to win up to $2 million.▰ Livestream Chat: https://discord.gg/jkb
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03:45
Video from Space - Weekly highlights: Week of March 8, 2020
Added 288 Views / 0 LikesSpaceX's Dragon spacecrat docked with the International Space Station, China launched a satellite, an exoplanet with iron rain, cosmic web research, a pulsating star and NASA Office of Inspector General report on the Space Launch System program are the hi
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01:02
Air pollution over locked down Italy drops in satellite data.
Added 350 Views / 0 LikesAir pollution from nitrogen dioxide emissions is declining over Italy according to Copernicus Sentinel-5P satellite data from Jan. 1-Mar. 11, 2020Credit: Space.com / Credits: contains modified Copernicus Sentinel data (2020), processed by ESA, CC BY-SA 3.
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01:06
SpaceX rocket stage separation captured in amazing ground view
Added 374 Views / 0 LikesSpaceX has released a ground view of the stage separation of their Falcon 9 rocket during the CRS-20 launch on March 7, 2020. Story: Watch the launch and first stage landing: https://www.space.com/spacex-launches-cargo-international-space-station.htmlCred
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02:32
Space to Ground: 20x: 03/13/2020
Added 443 Views / 0 LikesNASA's Space to Ground is your weekly update on what's happening aboard the International Space Station. Got a question or comment? Use #AskNASA to talk to us.Learn more about the important research being operated on Station:https://www.nasa.gov/iss-scien
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08:47
CoronaVirus Update: Ohio, France, Ireland & Israel close all schools
Added 299 Views / 0 Likesthe new is really ramping up.God bless everypne,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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01:01
Pulsating star that's tidally locked to red dwarf in animation
Added 314 Views / 0 LikesA star that pulsates on only one side, seen in this animation, has been discovered about 1500 light years away from Earth. The star is named HD74423 and is tidally locked to its companion red dwarf star. - Weird new star type pulses on only one side: http
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00:59
Robotic Bees Designed to Explore Mars
Added 312 Views / 0 LikesBee-lieve it or not NASA could send a swarm of robot bees to the Red Planet. Researchers are taking inspiration from the insect world to develop Marsbee, a bold new idea that could enhance the exploration of Mars.NASA 360 takes a look at the NASA Innovati
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01:09
China launches 54th Beidou constellation satellite
Added 341 Views / 0 LikesA Chinese Long March 3B rocket launched a BeiDou-3 navigation system satellite on March 9, 2020 from the Xichang Satellite Launch Center in southwest China. Only one Beideou satellite launch remains to complete the constellation. Credit: China Central Tel
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10:36
CoronaVirus update: GET READY FOR LOCKDOWN USA
Added 369 Views / 0 LikesThe sooner, the better.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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01:05
Ultra-hot exoplanet WASP-76b has iron rain
Added 326 Views / 0 LikesThe day side of exoplanet WASP-76b reaches temperatures over 4352 degrees farenheit (2400° C) that can vaporize metals. Strong winds blow "iron vapor to the cooler night side where it condenses into iron droplets,' according to the European Southern Obser
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13:22
CoronaVirus update: USA 959 Infections - 8% Fatality rate in Italy
Added 345 Views / 0 LikesIt's now or never.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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04:28
Down to Earth - Tip Of The Iceberg
Added 181 Views / 0 LikesIn this episode of “Down to Earth – Tip of the Iceberg,“ NASA astronaut Nick Hague shares how his time living and working in space changed his perception of life back on Earth. #SpaceStation20th
