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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03:57
Blastoff! India Launches Earth-Mapping Satellite and 13 US Cubesats
Added 377 Views / 0 LikesISRO's Polar Satellite Launch Vehicle (PSLV) blasted off from Satish Dhawan Space Centre carrying the Cartosat-3 Earth-observation satellite and 13 cubesates for U.S. Earth-imaging company Planet and Analytical Space. -- Launch Wrap: https://www.space.com
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00:59
First Photo from InSight After Mars Landing
Added 468 Views / 0 LikesThe NASA InSight lander captured imagery of the Martian surface moments after landing on Nov. 26, 2018. -- Touchdown on Mars! NASA's InSight Lands to Peer Inside the Red Planet: http://www.space.com/42541-mars-insight-lander-success.htmlCredit: NASA
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11:19
Red Alert! Another X-Class Flare! More Nasty Weather Ahead! & BIG Trump Trial Verdict Week!
Added 105 Views / 0 LikesHappy Memorial day, y'all.Let's honor the soldiers who gave allby being cool, staying cool, avoiding world war 3and preventing civil war 2.God bless everyone,T
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16:12
Nate projected to hit USA Gulf Coast as a Hurricane
Added 616 Views / 0 LikesNate projected to hit USA Gulf Coast as a Hurricane
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04:38
RED ALERT! Strange Fort Lauderdale storm is back! Classic Tornadoes in Georgia! Cyclone in Australia
Added 136 Views / 0 Likesstay cool.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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03:04
Galaxy cluster collision created 1.6 million mile shockwave
Added 223 Views / 0 LikesNASA Chandra X-ray telescope data from galaxy cluster Abell 2146 shows a "shockwave that stretches for some 1.6 million miles," that was created by a collision with another cluster. Credit: NASA/CXC/A. Hobart
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01:44
'Choose something you love' - ESA astronaut gives advice to kids
Added 363 Views / 0 LikesESA astronaut Luca Parmitano has some advice for children as they look to their future. [No Place Like Home: Astronaut Luca Parmitano Reminds Us How 'Precious' Earth Is](https://www.space.com/astronaut-luca-parmitano-climate-change-message.html)Credit: ES
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04:24
Jade Helm - Day 1: They Martial Lawed my Mind, man.
Added 663 Views / 0 LikesJade Helm - Day 1: They Martial Lawed my Mind, man.
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01:58
Touchdown! SpaceX Rocket Lands After Launching CRS-19 Mission
Added 426 Views / 0 LikesSpaceX landed a Falcon 9 rocket first stage on the 'Of Course I Still Love You' drone ship in the Atlantic Ocean on Dec. 5, 2019. The rocket launched the CRS-19 mission to the International Space Station. -- Weird Science Onboard: https://www.space.com/sp
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00:53
Peer into NASA's interactive graphic novel 'First Woman'
Added 133 Views / 0 Likes"First Woman" tells the fictional story of "Callie Rodriguez, the first woman to explore the Moon," according to NASA. Full Story: https://www.space.com/nasa-interactive-graphic-novel-first-womanCredit: NASA
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02:46
Expedition 71 Crew Prepares for Spacewalks Outside of Space Station
Added 85 Views / 0 LikesNASA astronaut and Expedition 71 flight engineer Matthew Dominick gives a behind-the-scenes look at the International Space Station’s airlock. Astronauts are scheduled to put on their spacesuits and work outside of the space station three times this summe
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11:53
Hurricane NATE! Plan & Prepare for LANDFALL now!
Added 592 Views / 0 LikesHurricane NATE! Plan & Prepare for LANDFALL now!
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08:13
Solar eclipse over Western Australia - See the moment of totality!
Added 134 Views / 0 LikesA solar eclipse occurred over Western Australia on April 20. 2023. The moment of totality is explained by NASA here. Credit: NASA / Timeanddate.com / Perth Observatory
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11:16
Water CUT OFF in Odessa TX! Putin cuts off Gas 2 Italy & Germany! Fed raises rates 75 BPS! 3AC Ruhro
Added 170 Views / 0 LikesThe 2nd half of June is going to be a wild ride.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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05:19
Red Alert! Sally has rapidly intensified to a Hurricane & probably be a Major Hurricane & Disaster
Added 367 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$THORnews on CashApphttps://www.patreon.com/thornewsweather channel videohttp
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04:33
The July Blue Moon Ideas on Saving Civilization
Added 604 Views / 0 LikesThe July Blue Moon Ideas on Saving Civilization
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17:55
More Volcano Problems Oregon, New Zealand, Japan, Ecuador + Wild Weather escalating to the Eclipse
Added 432 Views / 0 Likesbuckle up.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096WWW.PAYPAL.ME/THORNEWSwww.venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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01:01
Hot Exoplanet's Escaping Helium Seen from Ground - Artist Impression
Added 457 Views / 0 LikesUsing the Calar Alto 3.5-meter telescope, researchers captured near-infrared observations of helium escaping the atmosphere of a gas giant exoplanet called WASP-69b. -- A Helium Tail Trails This Fluffy Alien Planet: https://www.space.com/42654-helium-tail