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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03:23
Astronaut tests lunar wheelbarrow in moon-like gravity on parabolic flight
Added 80 Views / 0 LikesESA atronaut Thomas Pesquet and the chief instructor of European astronauts, Hervé Stevenin, test the Lunar Evacuation System Assembly (LESA) aboard a parabolic flight that simulated moon gravity. Full Story: https://www.space.com/first-test-lunar-wheelba
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Beware the Hurricane Dorian WAVE! Florida Georgia & South Carolina
Added 314 Views / 0 LikesThis storm has a strong storm surge variable component.Florida, don't sleep on this one. Stay aware.God bless everyone,I will be out of pocket from 9pm until tomorrow noon Please keep checking @crankywxguy WXTWITTER on twitterfor latest updates. also re
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SES-22 Mission
Added 126 Views / 0 LikesSpaceX is targeting Wednesday, June 29 for launch of SES-22 to a geosynchronous transfer orbit from Space Launch Complex 40 (SLC-40) at Cape Canaveral Space Force Station in Florida. The two-hour launch window opens at 5:04 p.m. ET, 21:04 UTC. A backup la
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Space Station Live: Cygnus Prepped for Departure
Added 546 Views / 0 LikesSpace Station Live: Cygnus Prepped for Departure
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15:35
Plan & Prepare for Hurricane Alberto! Gulf Coast USA.
Added 455 Views / 0 LikesHurricane? Tropical Storm? Sub-Tropical Storm?Plan & Prepare for Rain, Wind, Power Outages, Storm Surge, Flooding.God bless everyone,Thttps://www.paypal.me/THORnewsTHORNEWS PO BOX 35946HOUSTON TEXAS77235-5946crankywxguy bloghttp://www.stormhamster.com/ent
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Cat 2 Hurricane Henri to hit NE! Coronavirus surges! Wildfires rage! bitcoin rises Elon's humanoids!
Added 171 Views / 0 Likesit's going to be a wild wild 7 days & end of 2021.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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Interstellar 'Tsunami Waves' Last Much Longer Than Predicted | Video
Added 739 Views / 0 LikesInterstellar 'Tsunami Waves' Last Much Longer Than Predicted | Video
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06:45
Future TS/Hurricane Isaias is looking more Dangerous by the Hour & i am agitated
Added 257 Views / 0 Likesforgive my anger, my hackers are pissed.God bless everyone,T
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01:19
'Ashes of first stars' detected in far off gas clouds
Added 80 Views / 0 LikesThe Very Large Telescope (VLT) was used to detect chemical signatures in distant gas clouds that "we expect from the first stellar explosions," according to the European Southern Observatory. Full Story: https://www.space.com/universe-first-stars-graveyar
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Alien World K2-18b ‘May Be More Hostile’ Than Earth
Added 286 Views / 0 LikesWater vapor has been discovered in the atmosphere of exoplanet K2-18b. -- Story: Water Vapor Detected in Atmosphere of an Alien World Nearly Twice the Size of Earth: https://www.space.com/water-vapor-in-atmosphere-of-alien-planet-k2-18b.htmlThe alien worl
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03:05
Spacesuits for Artemis: Moon Dust and Mobility
Added 109 Views / 0 LikesExploration is dirty work! Advanced spacesuits will protect the first woman and person of color on the Moon from the harsh lunar environment. Lunar soil isn’t simple dust like what we have on Earth; it is irregular, sharp, and fine and it creates challeng
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06:44
NASA's ARM Asteroid Defense program in Danger of being Cancelled
Added 545 Views / 0 LikesNASA's ARM Asteroid Defense program in Danger of being Cancelled
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NASA's Mars Ice Challenge Day 1, Part 1
Added 397 Views / 0 LikesFor humans to survive on other worlds, they’ll have to harness the resources – like water – that exist there. A recent competition held at NASA’s Langley Research Center in Hampton, Virginia, aimed to find ways of doing just that.This is an archived versi
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SpaceX's new drone ship will secure rockets robotically
Added 131 Views / 0 LikesSpaceX's new drone ship "A Shortfall of Gravitas' is equipped with an 'octagrabber' robot that will secure the rocket to the deck after it lands. Credit: NASA
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Solar Feast of Crows - Enter the Sun Dragon part IV
Added 878 Views / 0 LikesSolar Feast of Crows - Enter the Sun Dragon part IV
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Peek inside a space environment simulation chamber in China
Added 80 Views / 0 LikesInstitute of Space Environment and Material Science at Harbin Institute of Technology has a chamber that can create the "environment similar to the lunar surface," according to China Central Television. -- China builds simulated moon chamber to prep for c
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Webb’s First Images: ESA/Webb Space Sparks Episode 3
Added 143 Views / 0 LikesWatch this special Space Sparks episode to see the first full-color images and spectroscopic data from the NASA/ESA/CSA James Webb Space Telescope!More information and download options: http://esawebb.org/videos/weic2210a/Credit:Directed by: Bethany Downe