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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03:00
Super Pink Moon! Where, when and what to look for
Added 312 Views / 0 LikesNASA PhD astrophysicist Michelle Thaller explains where you can find the supermoon/pink moon combo on April 7, which will be about 17 percent larger and 30 percent brighter than an apogee full moon. Thaller also describes the moon features that will be ea
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01:15
Relativistic jet pics captured by first-ever black hole image telescope
Added 373 Views / 0 LikesThe Event Horizon Telescope (EHT) Collaboration has released images of a "black-hole-powered jet" emanating from a galaxy in the Virgo constellation known as quasar 3C 279. - Event Horizon Telescope spots weird black-hole jet mystery inside quasar: https:
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13:29
Alert! Eris & Sun align. Comet Disintegrates? Plague gets worse. A Tale of 2 Storms & a Big Storm.
Added 291 Views / 0 LikesThis is a 2 shots of Whiskey, 2 BeersGood Morning VietnamAsteroid Fight Clubupdate.Let the best plan Win.We need a new plan.God bless everyone,Stay cool.T
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02:43
Final SpaceX Dragon robotic arm release completed by Space Station
Added 299 Views / 0 LikesSpaceX Dragon cargo spacecraft was released by the International Space Station's robotic arm on April 7, 2020. It marked the last time that the robotic arm will be used to release Dragon. Future Dragon flights will dock themselves at the stationCredit: NA
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00:52
Supermoon explained by ‘NASA at Home’
Added 350 Views / 0 LikesNASA lunar scientist Sarah Noble explains what a supermoon in this teachable moment from the 'NASA at Home' series. 'Super Pink Moon' rises tonight! Teach your kids about the biggest full moon of 2020: https://www.space.com/super-pink-full-moon-2020-teach
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14:05
Eris ALERT! Big Storm today! Stormy week ahead & SUPER BIG STORM in a week!
Added 335 Views / 0 LikesApril will be wild weather wise.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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01:59
Pink Supermoon? Astronomer explains what it is
Added 313 Views / 0 LikesAmerican Museum of Natural History astronomer Dr. Jackie Faherty explains why the full moon on April 7, 2020 is called the Pink Supermoon or Super Pink Moon. -- April Full Moon 2020: 'Super Pink Moon,' the biggest of the year, rises Tuesday: https://www.s
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07:19
Markets up 5% as NY announces it will start burying bodies in the park.
Added 277 Views / 0 Likesthis is an asteroid fight club video.God bless everyone,T
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02:46
Apollo 13 booster slammed into moon - See the impact site, seisometer readings
Added 334 Views / 0 LikesIn newly recovered audio, Apollo 13 commander Jim Lovell said "at least something worked on this flight," in regards to the booster impact experiment that saw their spacecraft’s S-IVB rocket booster hit the moon. Lunar seisometers recorded the 'rocking' o
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02:00
ESO observatories 'paused' amid COVID-19 pandemic
Added 345 Views / 0 LikesNew views of the cosmos via ESO's observatories in Chile has been 'paused' in response to the coronavirus pandemic. Astronomers will continue their work at home. -- Take a Stunning Aerial Tour of ESO's Big Telescopes in Chile: https://www.space.com/35313-
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03:36
Astronaut Moments: Chris Cassidy
Added 349 Views / 0 LikesLife on board the International Space Station may not be exactly what you’re imagining. But as he heads back for his third mission, astronaut Chris Cassidy says he’ll be savoring every minute of it.
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02:03
Watch BepiColumbo's orbital dance to get to Mercury in this animation
Added 353 Views / 0 LikesThe joint Europe-Japanese mission to Mercury will use "nine gravity assist flyby maneuvers" to get into its final orbit around the planet Mercury. -- Europe's Mercury-bound BepiColombo will swing past Earth soon! Here's what you need to know.: https://www
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06:52
What's Up in Space by Space.com (April 2020)
Added 367 Views / 0 LikesThe Space.com team, like everyone else, may be stuck at home amid the coronavirus pandemic, but space exploration is still going on. Here's what to expect in April with Space.com Editor-in-Chief Tariq Malik and Community Manager Stevie Ward! -- Join the S
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05:39
Video from Space - Weekly highlights: Week of March 29, 2020
Added 311 Views / 0 LikesChina continued work on their new crew spacecraft, the Milky Way’s warped disk has been studied using ESA’s Gaia mission, NASA astronaut Jessica Meir gave some tips on staying healthy at home, air pollution over the United States declined significantly in
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02:04
Space to Ground: Bartolomeo: 04/03/2020
Added 377 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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01:11
SpaceX Starship SN3 collapses during pressure test
Added 347 Views / 0 LikesSpaceX's Starship SN3 prototype failed during a pressure test on April 2, 2020. Full Story https://www.space.com/spacex-starship-sn3-pressure-test-failure.htmlOn Twitter, SpaceX CEO Elon Musk said it "may have been a test configuration mistake. Some valve
