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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00:30
Pan: So near, or so far?
Added 96 Views / 0 LikesA field full of distant galaxies on a dark background. Most of the galaxies are very small, but there are a few larger galaxies and some stars where detail can be made out. In the very centre there is an elliptical galaxy with a brightly glowing core and
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08:27
RED ALERT! "SERIOUS UNDISCLOSED NATIONAL SECURITY THREAT" reported. Dangerous New Technologies?
Added 96 Views / 0 LikesHappy Pluto Conjunct Mars Valentine's day to all who celebrate.Stay Cool.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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02:53
Max Space expandable habitats - 'maximizing space in space'
Added 96 Views / 0 LikesMax Space expandable habitat technology could reduce costs and maximize space...in space. Credit: Max Space
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06:29
OFF THE CHARTS PARTICULARLY DANGEROUS TORNADO HAIL & FLASH FLOOD SITUATIONS USA TODAY!
Added 96 Views / 0 Likessorry for the all caps.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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04:31
Artemis 2 moon astronauts talk about mission delays
Added 96 Views / 0 LikesThree of the Artemis 2 moon astronauts spoke with Space.com about their mindset when it comes to mission delays. They said changes to launch schedules for Artemis 2 and Boeing Starliner, which was delayed in May 2024 shortly after these interviews were re
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10:14
Rocket Lab launches NASA PREFIRE satellite to study Earth's poles
Added 96 Views / 0 LikesA Rocket Lab Electron rocket launched NASA's PREFIRE (Polar Radiant Energy in the Far-InfraRed Experiment) climate-studying mission from New Zealand site on May 25, 2024 at 3:41 a.m. EDT (0741 GMT; 7:41 p.m. local New Zealand time). Full Story: https://ww
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01:17
See zebrafish swim in space on China's Tiangong space station
Added 96 Views / 0 LikesChina is studying zebrafish aboard the Tiangong space station and they are doing just fine. Full Story: https://www.space.com/china-tiangong-space-station-zebrafish-healthyCredit: China Central Television (CCTV)
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01:33
China's Chang'e-6 mission lands on the far side of the moon
Added 96 Views / 0 LikesChina's Chang'e-6 mission landed on the moon’s South Pole-Aitken Basin, according to the China National Space Administration (CNSA).Credit: Space.com | footage courtesy: China Central Television (CCTV) | edited by [Steve Spaleta](https://twitter.com/steve
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09:22
RED ALERT! Hurricane Beryl is Biblical* & Dangerous! Potential Dam failure in Texas!
Added 96 Views / 0 LikesWARNING: I get spicy in this one.Stay cool.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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01:10
China's Shenzhou-18 crew preps for 2nd spacewalk, conducts experiments
Added 96 Views / 0 LikesAstronauts Ye Guangfu, Li Cong and Li Guangsu are preparing for a 2nd spacewalk aboard the Tiangong space station. They've also been conducting and maintaining combustion experiments. Full Story: https://www.space.com/china-shenzhou-18-astronauts-prepare-
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16:03
RED ALERT! TX Dam Failure watch as TS Beryl expected 2 strengthen 2 a Hurricane & Bring Heavy rain!
Added 96 Views / 0 Likeswarning: my tone in the video does not match the title.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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05:38
RED ALERT! Tornado Outbreak in Louisiana from TS Beryl! Arkansas you're up next!
Added 96 Views / 0 Likeswhoa,T
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02:58
Apollo 11 at 55: NASA chief Bill Nelson talks unity
Added 96 Views / 0 LikesNASA administrator commemorates the 55th anniversary of the Apollo moon landing with a message of unity. Credit: NASA
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01:09
Full moon in Aug. 2024 is a Supermoon Blue Moon!
Added 96 Views / 0 LikesOn Aug, 19, 2024, the full moon will be a supermoon and a blue moon. "Although it will not look blue, as the third full Moon in a season with four full Moons, this will be a Blue Moon," according to NASA. Learn more about blue moons: https://www.space.com
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10:16
Blastoff! Rocket Lab launch Earth-observing radar satellite
Added 96 Views / 0 LikesA Rocket Lab Electron rocket launched an Earth-observing radar satellite for the California company Capella Space from New Zealand on Aug. 11, 2024 at 9:18 a.m. EDT (1318 GMT; 1:18 a.m. on Aug. 12 local New Zealand time). [Full Story](https://www.space.co
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03:16
Mars' escaping water mystery 'unlocked' by Hubble and MAVEN
Added 96 Views / 0 LikesHubble Space Telescope and MAVEN mission have been used to help unravel the mystery of Mars' escaping water. Credit: NASA Goddard Space Flight Center
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04:57
Polaris Dawn | Views from Dragon in flight
Added 96 Views / 0 LikesDuring its five day mission, Dragon and the Polaris Dawn crew completed 75 orbits around Earth.
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01:04
Hurricane Milton makes landfall and crosses over Florida in satellite time-lapse
Added 96 Views / 0 LikesWatch Hurricane Milton barrel over Florida in this NOAA GOES-East satellite time-lapse captured Oct. 9-10, 2024. Credit: CIRA / NOAA | edited by Space.com
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02:59
Hurricane Rafael is heading towards the Gulf of Mexico
Added 96 Views / 0 Likeshi.Stay cool.God bless everyone,T