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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06:12
American plane & Army Helicopter collide near DC Airport. 4.5 San Antonio TX EQ & Dallas Flood.
Added 27 Views / 0 LikesT
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06:12
Starship stacked, Venus flybys, Cygnus launch & more in VFS Weekly highlights
Added 237 Views / 0 LikesSpaceX's Starship SN20 was stacked atop a Super Heavy booster for the first time, the Solar Orbiter and BepiColombo spacecrafts flew by Venus, a comet was vaporized by the sun, China launched a satellite and NASA released more imagery of Ingenuity's 11th
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Eclipse Safety 101 — Indirect Eclipse Viewing with a Pinhole Projector
Added 128 Views / 0 LikesIf you don't have proper eye protection to a view a solar eclipse there are other safe ways to experience this cosmic phenomenon. One way is to use a pinhole projector, which has a small opening (for example, a hole punched in an index card) and projects
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01:56
Remembering John Young's Amazing NASA Career
Added 608 Views / 0 LikesRemembering John Young's Amazing NASA Career
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07:14
Texas Snow comin'! Double V over the Moon! Comet c/2017 K2! Another Space Debris anti-lottery!?
Added 143 Views / 0 Likeshappy Sunday, yall.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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15:13
January is always a stressful American month during a Pandemic = Dark Winter part 2022.
Added 220 Views / 0 LikesStay cool, Play Defense & up your Prayer game.Venus & Mercury will both be retrograde for the 2nd half of January so that'll probably make things even more challenging.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal
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04:00
How do astronauts sleep on space station?
Added 263 Views / 0 LikesExpedition 55/56 flight engineer Ricky Arnold explains how astronauts grab some shut eye aboard the International Space Station. -- How-tos in Space!: http://videos.space.com/m/rdSVVMs6/when-astronauts-have-to-go-bathrooms-in-space-explained-with-props?li
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05:14
HOUR 294 GFS MADNESS! Model has Category 1 hitting NY May 21st! For entertainment purposes only!
Added 367 Views / 0 LikesWe are watching the middle of May like a super hawk,This is more info for our data set.I still have faith in the Atmospheric Defense teambut we should not let our guard down.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.
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01:22
Space Station Beams Down Earth Day Greetings | Video
Added 672 Views / 0 LikesISS Commander Koichi Wakata and Flight Engineers Richard Mastracchio and Steve Swanson have a message to share with the world on April 22nd, 2014, Earth Day. -- Satellite's Earth Day Photo: http://goo.gl/iXd3z8
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00:37
SpaceX Falcon Heavy Payload Fairing Half Captured at Sea
Added 432 Views / 0 LikesSpaceX's Ms. Tree (formerly Mr. Steven) ship caught a payload fairing half from the Falcon Heavy rocket that launched the STP-2 mission on June 25, 2019.Credit: SpaceX
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08:08
Boom XB-1 goes supersonic three times on final flight
Added 26 Views / 0 LikesBoom Supersonic's XB-1 exceeded Mach 1, the speed of sound, three times during its final test flight on Feb. 10. 2025. The chief test pilot was Tristan "Geppetto" Brandenburg. Credit: Boom Supersonic
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18:08
Texas! Earth facing Sunspot + Gulf = It's a party that could get Dangerous, y'all.
Added 439 Views / 0 LikesI got a funny feeling the thing growing in the Gulf of Mexico may mirror about to be Earth Facing Sunspot 2137 because when the Sun gets active, Earth weather gets active, the Volcanoes get active & people act a little wild. Stay Cool.God bless everyone,T
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Watch the 'ring of fire' annular solar eclipse in this amazing time-lapse from Nevada
Added 138 Views / 0 LikesA timelapse of the 2023 annular solar eclipse as seen from outside Great Basin National Park in Ely. Nevada on Oct. 14, 2023. Shot with a Unistellar eQuinox 2 smart telescope with Smart Solar Filter. Full Story: https://www.space.com/annular-solar-eclipse
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43:20
Inmarsat-5 Flight 4 Launch Webcast
Added 414 Views / 0 LikesSpaceX is targeting launch of Inmarsat-5 Flight 4 from historic Launch Complex 39A (LC-39A) at NASA’s Kennedy Space Center in Florida. The 51-minute launch window opens on Monday, May 15, at 7:20 p.m. EDT, or 23:20 UTC. A backup launch window opens on Tue
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01:03
See NASA's Artemis 1 spacecraft fly away from Earth in epic time-lapse
Added 218 Views / 0 LikesWatch as the Artemis 1 Orion spacecraft travels to the moon in this epic time-lapse from flight day 1 on Nov. 16, 2022. Watch the historic Artemis 1 launch: https://www.space.com/nasa-artemis-1-moon-mission-launchCredit: NASA | mash mix by Space.com's Ste
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01:13
James Webb Space Telescope’s primary mirror alignment to take months
Added 271 Views / 0 LikesThe James Webb Space Telescope’s primary mirror segments can make tiny movements to deliver the sharpest imagery possible. The alignment process is set to begin “about 40 days after launch and will take several months to complete” according to NASA’s Godd
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Mission Control Houston - A Flight Director's Walkthrough | Video
Added 681 Views / 0 LikesMission Control Houston - A Flight Director's Walkthrough | Video
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02:53
Space to Ground: Fanning the Flames: 05/15/2020
Added 334 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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Boom! Boom! Boom! The SUN's Big Coronal Mass Ejection 3 day Cycle?
Added 741 Views / 0 LikesBoom! Boom! Boom! The SUN's Big Coronal Mass Ejection 3 day Cycle?
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27:21
Monster Category 4 Hurricane Barbara is a THREAT to Hawaii.
Added 393 Views / 0 LikesIt's also a really bad omen for Hurricane season.The Eclipse energy is heavy & I'm sorta losing my sanityfrom being under constant hacker attack.God bless everyone,Thttps://www.paypal.me/thornewsmailT Lewison5430 Birdwood Rd. #416Houston, Texas 77096