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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02:03
Relive the Artemis 1 moon mission's greatest hits in 2-minute time-lapse
Added 77 Views / 0 LikesTake a trip around the moon and back with the NASA Artemis 1 mission in this time-lapse of highlights from the 25 day mission. [Artemis 1 mission wraps up with splashdown](https://www.space.com/artemis-1-orion-splashdown-moon-mission-success)Credit: NASA
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01:06
EOS Sat-1! 1st agriculture-focused satellite constellation - Launching on SpaceX Transporter-6
Added 77 Views / 0 LikesThe SpaceX Transporter-6 mission will launch EOS Sat-1 for EOSDA. It's the first of seven agriculture-focused satellites for the company's new constellation. Watch the launch live on Jan. 3: https://www.space.com/watch-spacex-1st-rocket-launch-2023-transp
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06:50
RED ALERT! 20+ inches of Rain for 45% of California over next 2 weeks? Tornadoes 4 the South Today!
Added 77 Views / 0 LikesThe 2 week forecast for Central & North California looks very bad, y'all.Keep an eye on this situation.God bless everyone,T LEWISONhttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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Transporter-6 Mission Control Audio
Added 77 Views / 0 LikesThis is the vehicle trajectory and mission control audio without any additional commentary. There may be very long periods of silence. For our full hosted webcast, visit https://www.spacex.com/launches/
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07:38
Giant UFO Shaped Cloud! Comet E3 ZTF! Very* Earthquakey! Fireballs! and our Super impressive Sun!
Added 77 Views / 0 LikesYou are awesomeand i missed you.God bless everyone,T LEWISONhttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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09:16
Two Inner Solar System Comets, Sprites & a UFO*! + ICE STORM South USA & Major New Zealand floods!
Added 77 Views / 0 LikesThere a whole lot happening right now.Stay cool.God bless everyone,T LEWISONhttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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07:08
WOW! 141 Temperature Difference in the USA right now! #Icemageddon2023
Added 77 Views / 0 Likeshello.I wish you well.God bless everyone,
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01:16
Mars helicopter Ingenuity flies for the 41st time! See first b&w and color images + stats
Added 77 Views / 0 LikesThe Ingenuity helicopter took the Martian skies once again on Jan. 27, 2023. See the first images obtained by NASA of the flight along with statistics. Credit: Space.com | footage & graphics: NASA/JPL-Caltech | edited by Steve Spaleta (https://twitter.com
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52:56
Hispasat Amazonas Nexus Mission
Added 77 Views / 0 LikesOn Monday, February 6 at 8:32 p.m. ET, SpaceX launched the Hispasat Amazonas Nexus mission from Space Launch Complex 40 (SLC-40) at Cape Canaveral Space Force Station in Florida. This was the sixth launch and landing for this Falcon 9 first stage booster,
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01:14
Powerful solar flares produce dramatic spitfire and radio blackout - See in 4K
Added 77 Views / 0 LikesA erupted with M1 and M6 class solar flares on Feb. 7, 2023. See the fireworks in these views from NASA's Solar Dynamics Observatory.Credit: NASA/SDO/helioviewer.org | edited by Space.com's Steve Spaleta (https://twitter.com/stevespaleta) Music: My Halo O
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00:30
Can You Spot It?
Added 77 Views / 0 LikesRight in the middle of this image, nestled amongst a smattering of distant stars and even more distant galaxies, lies the newly discovered dwarf galaxy known as Donatiello II. If you cannot quite distinguish the clump of faint stars that is all we can see
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01:13
See an X1-class solar flare in this close-up view from NASA's IRIS mission
Added 77 Views / 0 LikesNASA's Interface Region Imaging Spectrograph (IRIS) mission captured an X1.1-class solar flare on Feb. 11, 2023. See time-lapse footage of the blast that caused "a strong shortwave radio blackout over South America," according to Spaceweather.com. Full St
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03:13
Space to Ground: A Grip on the Future: Feb. 17, 2023
Added 77 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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00:53
See the eye of tropical cyclone Freddy in amazing view from space station
Added 77 Views / 0 LikesThe International Space Station flew over the eye of tropical cyclone Freddy on Feb. 17, 2023. The storm was above the Indian Ocean at the time. Credit: NASA
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10:50
NASA's Artemis rocket engine roars to life in an epic 600 second static-fire test
Added 77 Views / 0 LikesNASA fired up an RS-25 engine for 600 seconds at the Stennis Space Center on Feb, 22, 2023. It was the "second in a 12-test series to demonstrate we are prepared to produce engines for Artemis V missions and beyond," according to the Aerojet Rocketdyne.Cr
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02:55
Space to Ground: Night Launch: March 3, 2023
Added 77 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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Starlink Mission Control Audio
Added 77 Views / 0 LikesThis is the vehicle trajectory and mission control audio without any additional commentary. There may be very long periods of silence. For our full hosted webcast, visit https://www.spacex.com/launches/