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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01:07
NASA is growing chili peppers in space
Added 168 Views / 0 LikesNASA has begun to grow peppers from 48 Hatch chili pepper seeds for the Plant Habitat-04 (PH-04) experiment. Watch radishes grow in space: https://videos.space.com/m/vpZf0IQL/watch-radishes-grow-in-space-in-this-time-lapse-video?list=9wzCTV4gCredit: NASA
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04:16
Rosetta Probe Crashed into Comet But Mission Keeps on Giving
Added 626 Views / 0 LikesRosetta Probe Crashed into Comet But Mission Keeps on Giving
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01:20
Near-Earth Asteroids Discovered To Date | Planetary Defense: By the Numbers April 2024
Added 24 Views / 0 LikesWhat do we know about the asteroids and comets in Earth's neighborhood? Planetary defense — which includes finding, tracking, and characterizing these near-Earth objects — is part of our mission. Here's what we've found so far.Learn more about Planetary D
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05:55
Red Alert! 5000 Mile Wide Mountain of Seaweed headed to Florida! MOR BANK PROBLEMS! & uh oh WEATHER!
Added 75 Views / 0 Likeshello.i missed you,i hope you have a fantastic wonderful weekend.God bless everyone,T LEWISONhttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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03:34
'Campfires' on Sun seen in new zoomed in Solar Orbiter footage
Added 185 Views / 0 LikesESA's Solar Orbiter obtained new imagery of 'campfires' on the sun in February 2021. The process that creates campfires may "contribute significantly to the heating of the Sun’s outer atmosphere, or corona," according to the European Space Agency.Credit:
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07:06
Milky Way's supermassive black hole Sagittarius A* - How was it imaged?
Added 165 Views / 0 LikesLearn how the Event Horizon Telescope (EHT) captured an image of the Milky Way galaxy's supermassive black hole Sagittarius A*. Full Story: https://www.space.com/milky-way-monster-black-hole-first-image-ehtCredit: ESO
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16:00
Hawaii & the East Coast to be hit by Hurricanes September 12th-ish?
Added 353 Views / 0 LikesOne week from now could be the absolute most dangerous weekend in American history with Hurricane Olivia threatening to make landfall on Hawaii & Hurricane Florence threatening to strike the East Coast. Plus the lowest pressure system ever recorded in the
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01:13
Aurora's Flow Over Sweden's Lake Torneträsk | Time-Lapse Video
Added 773 Views / 0 LikesChad Blakley (lightsoverlapland.com) captured footage of the aurora borealis on Oct 17th, 2013. The lake is the sixth largest body of water in Sweden and is located in Abisko National Park.
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03:43
SpaceX launches Starlink 6 mission - Another 60 satellites
Added 378 Views / 0 LikesSpaceX launched 60 Starlink satellites atop a Falcon 9 rocket from Launch Complex 39A at NASA's Kennedy Space Center on April 22, 2020. The launch brings the number of satellites in orbit for the megaconstellation to 422. Credit: SpaceX
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17:10
Catastrophic Flooding in China! Wildfires & Severe Weather! Collective PMS! XFlare Sunspot Returns!
Added 167 Views / 0 Likeswarning: this video makes bad attempts to find some humor in all the chaos & global unhappiness.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://w
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09:36
Double Atmospheric River on the Way to the USA
Added 591 Views / 0 LikesDouble Atmospheric River on the Way to the USA
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07:46
my Mental health day observation: the energy that's been hitting Earth has been pretty incredible.
Added 80 Views / 0 LikesWARNING: the audio turned out very weirded.a good sign tho,overall?lips in the sky.God bless everyone,T
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Crew-1 Mission | Return
Added 210 Views / 0 LikesSpaceX and NASA are targeting Saturday, May 1 at 8:35 p.m. EDT, or 00:35 UTC on May 2, for Dragon to autonomously undock from the International Space Station (ISS) and splashdown off the coast of Florida on Sunday, May 2 at approximately 2:57 a.m. EDT, 6:
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01:47
See plants grown in lunar soil from Apollo missions
Added 113 Views / 0 LikesThale cress (Arabidopsis thaliana) seeds were planted in lunar soil collected during the Apollo missions for research conducted by Robert Ferl and colleagues. Full Story: https://www.space.com/plants-grown-lunar-soil-apollo-missionsCredit: Space.com | foo
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51:59
Texas or Gulf Hurricane? Hurricane Florence variables & Tropical Storm Olivia to hit Hawaii
Added 369 Views / 0 Likesthis is as wild as i've ever seen it. u got a couch i can crash on for a few daysin Austin if a hurricane comes to Houston?God bless everyone,Thttps://www.paypal.me/THORnewsTshirtshttps://hitthebuttonbaby.com/THORNEWS PO BOX 35946HOUSTON TEXAS77235-5946th
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02:51
Cygnus Spacecraft Captured By Space Station | Video
Added 727 Views / 0 LikesThe Orbital Sciences' vehicle was captured by the International Space Station's robotic arm on September 29th, 2013.
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01:18
See SpaceX's Starship SN4 pass a critical pressure test in time-lapse video
Added 326 Views / 0 LikesSpaceX Starship SN4 prototype passed a cryo pressure test on April 26, 2020 at the private spaceflight company's Boca Chica, Texas facility. -- Related: SpaceX unveils users' guide for giant Starship rocket: https://www.space.com/spacex-starship-transport
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06:30
2 North Texas Fireballs! 6.0 Earthquake Indonesia! Las Vegas storm! Montana & Idaho fires!
Added 159 Views / 0 Likesviva las vegas.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