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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02:11
Giant planet found near a white dwarf star - How did it get there?
Added 312 Views / 0 LikesNASA’s Transiting Exoplanet Survey Satellite (TESS) and Spitzer Space Telescope detected a Jupiter-size planet, designated WD 1856 b, orbiting a much smaller white dwarf star. NASA explores how it got there.Credit: NASA/JPL-Caltech/NASA's Goddard Space Fl
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01:20
Wildfire-generated carbon monoxide measured from space
Added 234 Views / 0 LikesThe Atmospheric Infrared Sounder (AIRS) instrument aboard NASA's Aqua satellite measures trace greenhouse gases like carbon monoxide. High concentrations of the gas can be seen here traveling across the parts of the US, South America and Africa. -- Stark
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01:07
Category 2 Hurricane Sally makes landfall in stunning view from space
Added 290 Views / 0 LikesCategory 2 Hurricane Sally made landfall in the early morning hours of Sept. 16, 2020. "Historic and catastrophic flooding is unfolding along and just inland of the coast from west of Tallahassee, Florida to Mobile Bay, Alabama," according to the National
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03:41
RED ALERT! Flash Flood Emergency in Alabama & Florida from Strong Category 2 Hurricane Sally!
Added 298 Views / 0 LikesPeak Hurricane season 2020 is in effect.T LEWISONJ5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornewsweather channel videohttps://weather.com/storms/hur
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07:44
Hurricane Sally Category 2 sustained 100 mph wind speeds & strengthening & the Oceans are Active.
Added 340 Views / 0 LikesPeak Hurricane season 2020 is in effect.T LEWISONJ5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornewsweather channel videohttps://weather.com/storms/hur
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08:14
Hurricane Sally 30+ inches of Rain possible. Texas Hurricane 5+ days? East Coast Hurricane 8 days?
Added 332 Views / 0 LikesIt's getting busy, y'all.God bless everyone,T LEWISONJ5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornewsweather channel videohttps://weather.com/storms
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01:10
China launches 9 satellites from the Yellow Sea
Added 270 Views / 0 LikesA Chinese Long March 11 rocket launched nine Jilin-1 Gaofen 03-1 group satellites from the Yellow Sea on September 15, 2020. Credit: Space.com / footage courtesy: China Central Television (CCTV) / produced & edited by [Steve Spaleta](http://www.twitter.co
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01:19
Slow-moving Hurricane Sally seen from space in time-lapsed views
Added 267 Views / 0 LikesHurricane Sally was captured by NOAA's GOES-East satellite on Sept 14-15, 2020. Hurricane Paulette can also be seen in these views from space.Credit: Space.com / footage: CIRA/NOAA / produced & edited by [Steve Spaleta](http://www.twitter.com/stevespaleta
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06:15
RED ALERT! Cat 2 Hurricane Sally is Stalling & Strengthening! Harvey 2.0?
Added 287 Views / 0 LikesStalling and Strengthening is a worst case scenario.This will probably rapidly intensify from 1am to 4 am.Please be prepared & have a plan.God bless everyone,T LEWISONJ5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.co
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07:21
Hurricane Sally is going to be a slow rainmaking monster! 100 MPH sustained winds & will Strengthen!
Added 293 Views / 0 LikesThere are still a lot of questions about timing & intensity of landfall.God bless everyone,T LEWISONJ5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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09:04
LIFE ON PLANET VENUS!?!? Shocking:* Revelation! Astronomers may have found Evidence!
Added 413 Views / 0 LikesWARNING! Venus Veritas makes me a happy Venus Viking!This is a part ZERO THORnews Asteroid Fight Club video.You've been warned.God bless everyone,T LEWISONJ5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewi
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04:44
MAJOR FLOOD potential Hurricane Sally has 90 mph sustained winds & 36 hours to strengthen.
Added 315 Views / 0 LikesThis storm is very dangerous.God bless everyone,T LEWISONJ5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornewsweather channel videohttps://weather.com/st
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02:40
Venus life? Next steps: Sample return? Is it dangerous? Astrobiologist explains
Added 293 Views / 0 LikesAstronomers may have detected phosphine molecules on Venus, a possible sign of life. How should humanity explore it further? Astrobiologist Dr. David Grinspoon explains. -- Strange chemical in clouds of Venus defies explanation. Could it be a sign of life
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05:19
Red Alert! Sally has rapidly intensified to a Hurricane & probably be a Major Hurricane & Disaster
Added 289 Views / 0 LikesHurricane Sally will have 40+ Hours to develop.God bless everyone,T LEWISONJ5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornewsweather channel videohttp
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01:41
Signs of life on Venus? Phosphine molecules detected
Added 294 Views / 0 LikesThere may be "extra-terrestrial ‘aerial’ life" in the clouds of Venus according to a statement by the Royal Astronomical Society. The James Clerk Maxwell Telescope (JCMT) in Hawaii detected the molecule phoshine in the Venusian atmosphere, which may be an
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04:59
Life on Venus? Phosphine found? Astrobiologist explains
Added 277 Views / 0 LikesAstrobiologist David Grinspoon explains the significance of finding phosphine molecules on Venus. Grinspoon is a Planetary Science Institute senior scientist and author of "Venus Revealed: A New Look Below The Clouds Of Our Mysteriious Twin Planet."(https
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01:06
Bus and car-size asteroids zip by Earth on same day
Added 289 Views / 0 LikesAsteroids 2020 RF3 and 2020 RD4 flew close to Earth on Sept. 14, 2020. 2020 RF 3 closest approach was 58,400 mi (93,985 km) away and 2020 RD4 was 65,700 (105,733 km) away. Credit: Space.com / orbit animations: NASA/JPL-Caltech / produced & edited by [Stev
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05:58
Alert! Hurricane* Sally is BLOWING UP 40+ hours before Landfall & Hurricane Paulette to hit Bermuda!
Added 307 Views / 0 LikesIt is getting intense out there.T LEWISONJ5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornewsweather channel videohttps://weather.com/storms/hurricane/n
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10:25
RED ALERT! Hurricane Sally will bring deadly Flooding to Louisiana Alabama & Mississippi!
Added 309 Views / 0 LikesI think Sally will be at least a category 2 maybe even a 3 before landfall.God bless everyone,T LEWISONJ5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thorn