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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01:01
NASA’s Perseverance rover sees Martian moon Phobos transit the Sun
Added 36 Views / 0 LikesNASA’s Perseverance rover captured imagery of Martian moon Phobos transiting the Sun on Feb. 8, 2024. The pics have been time-lapsed here. Full Story: https://www.space.com/mars-solar-eclipse-phobos-sun-perseverance-videoCredit: Space.com | footage courte
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NASA’s Planet Finder TESS Will Study 85 Percent of Sky - How?
Added 487 Views / 0 LikesThe Transiting Exoplanet Survey Satellite (TESS) will use its 4 cameras to deliver data on 350 times more of the sky than NASA’s Kepler mission. Credit: NASA Goddard Space Flight Center
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NASA’s PUFFER Robot Can Explore Extreme Terrains | Video
Added 569 Views / 0 LikesNASA’s PUFFER Robot Can Explore Extreme Terrains | Video
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03:39
NASA’s SpaceX Crew-4 Mission Overview
Added 140 Views / 0 LikesNASA’s SpaceX Crew-4 Mission OverviewThe next flight to the International Space Station is ready to launch! NASA’s SpaceX Crew-4 mission will deliver four new crewmembers to the space station and power the next increment of groundbreaking science research
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02:53
NASA’s SpaceX Crew-7 Mission Overview
Added 69 Views / 0 LikesNASA’s SpaceX Crew-7 mission will carry NASA astronaut Jasmin Moghbeli, ESA (European Space Agency) astronaut Andreas Mogensen, JAXA (Japan Aerospace Exploration Agency) astronaut Satoshi Furukawa, and Konstantin Borisov of Roscosmos to the International
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NASA’s SpaceX Crew-8 Mission Overview
Added 29 Views / 0 LikesNASA’s SpaceX Crew-8 mission will carry NASA astronauts Matthew Dominick, Michael Barratt, Jeanette Epps, and Alexander Grebenkin of Roscosmos to the International Space Station. A SpaceX Falcon 9 rocket and Dragon spacecraft will launch from Launch Compl
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NASA’s SpaceX Crew-8 Mission Training Resource Reel
Added 37 Views / 0 LikesNASA’s SpaceX Crew-8 crew trains for their upcoming mission to the International Space Station. Their training took place across the world, most notably at NASA’s Johnson Space Center in Houston, Texas, and at SpaceX Headquarters in Hawthorne, California.
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03:57
NASA’s SPHEREx space telescope will tells us about the Universe's origin
Added 115 Views / 0 LikesNASA's NASA’s SPHEREx mission will tells us about the origin of universe, the history of galaxies and abundance of ices. Credit: NASA/JPL-Caltech
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08:49
NASA’s Uncrewed EM-1 Mission Around the Moon and Back - NASA Explainer
Added 568 Views / 0 LikesNASA’s Uncrewed EM-1 Mission Around the Moon and Back - NASA Explainer
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01:02
NASA’s Vascular Tissue Challenge: Improving Life in Space and on Earth
Added 631 Views / 0 LikesNASA’s Vascular Tissue Challenge: Improving Life in Space and on Earth
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10:02
Nashville Flood Alert! Norway Meteor! New Mexico UFO! Hawaii Flood Watch! & Flood Season
Added 246 Views / 0 LikesOof, February.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornewsspacecowboy2017@gmail.com
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09:50
Nasty California Wildfire! Bitcoin down 50% from All Time Highs! Cool & Cold Weekend!
Added 136 Views / 0 LikesI hope you are doing super, duper and awesome.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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17:47
Nasty Election Day Storm & more Major Flood Troubles USA + Atlantic Volcano Heat
Added 369 Views / 0 Likeshttps://www.paypal.me/THORnewsThe Cranky Weather Guy Hurricane Ida BLOG.http://www.stormhamster.com/entry/ida.htmStay Cool. T@newTHOR on twitterhttps://www.facebook.com/thornewsgothe crankywxguy bloghttp://www.stormhamster.com/entry/e110318.htmthe wave ma
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06:50
Nasty Storm over Texas tonight & Monster Meteor Shower in 1 week from a broken Comet? or maybe a dud
Added 130 Views / 0 Likesit's a weird energy day.i hope you and yours are well.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornewsthe article from sp
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05:07
Nasty Storms Wednesday & Thursday! Lots of Solar Flares & Wildfires! Hurricane Preparedness week!
Added 154 Views / 0 LikesI hope you are doing well.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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09:17
Nasty Wildfires! BIG Heatwave! Gulf of Mexico Super Soaker Storm!
Added 101 Views / 0 Likesstay cool.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnews$THORnews on CashApphttps://www.patreon.com/thornews
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05:08
Nat Geo's 'Mars' Is 'More Dramatic Because It's Based On Science' - Exec. Producer | Video
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13:33
Nate is now a Hurricane & could intensify to Category 3 by Landfall
Added 427 Views / 0 LikesNate is now a Hurricane & could intensify to Category 3 by Landfall
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16:12
Nate projected to hit USA Gulf Coast as a Hurricane
Added 537 Views / 0 LikesNate projected to hit USA Gulf Coast as a Hurricane
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06:40
NATIONAL EMERGENCY ALERT! today. 5.7 Earthquake Nepal! Big Extratropical Nor'Easterthing watch!
Added 72 Views / 0 Likeshello,God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews