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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01:05
Jumbo Jet-Sized Asteroid's Closer Than Moon Flyby in Orbit Animation
Added 487 Views / 0 LikesAn estimated 233-foot asteroid (71 meters), named 2009 OD, flew closer than the Moon on July 24, 2019. At nearest approach it was about 222,000 miles away (354,055 km). Credit: NASA / JPL-Caltech / mash mix: Space.com
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01:31 New
PREPARE FOR BLOODMOON ECLIPSE MONSTER STORM WEEKEND.
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04:20
Red Alert! Europe about to get hit by Storm Domingos! Floods in Italy, Brazil, Kenya, Saudi Arabia!
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05:45
The strange adventures of Potentially Hazardous Near Earth Asteroid TX68
Added 701 Views / 0 LikesThe strange adventures of Potentially Hazardous Near Earth Asteroid TX68
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00:30
Hubble and Webb Observe II ZW 96
Added 149 Views / 0 LikesThis video features the chaotic merging galaxies II ZW 96, which have been examined in two distinct wavelengths by the NASA/ESA Hubble Space Telescope and the NASA/ESA/CSA James Webb Space Telescope.The image shown first was taken by Hubble’s Advanced Cam
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Voyager 2's 'Hair-Raising' Fly-By Of Triton Animated
Added 740 Views / 0 LikesVoyager 2's 'Hair-Raising' Fly-By Of Triton Animated
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S California Coast! I don't Trust 2x Cannibal Hurricane John & Hector looks Stronger than forecast
Added 482 Views / 0 LikesWeird glitches are everywhere. You have been warned!Hurricane John has devoured ileana & is supposed to devour Hurricane Kristy. This is the first time that a Hurricane has Fujiwara'd twice then devoured two separate tropical systems if the models are clo
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BIG BLIZZARD for New York, Massachusetts, Connecticut, Maine & New Hampshire & lots of snow for NE.
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Alert! Danger! NASTY Hurricane Ahead 4 Waves to Watch + Eurocane hits London
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02:32
SpaceX revisits first successful launch to orbit with Falcon 1 rocket
Added 110 Views / 0 LikesThe Falcon 1 made history on September 28, 2008 by becoming the "first privately developed liquid fuel rocket to reach Earth orbit," according to SpaceX. Hear from the team that made it happen. Credit: SpaceX
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01:22
Sir Richard Branson Rolls Out New SpaceShipTwo ‘Unity’ | Raw Video
Added 640 Views / 0 LikesSir Richard Branson Rolls Out New SpaceShipTwo ‘Unity’ | Raw Video
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Mars helicopter Ingenuity soars on its highest flight yet
Added 164 Views / 0 LikesThe Mars helicopter Ingenuity flew to an altitude of 14 meters (~46 feet) on Dec. 3, 2022. It broke its previous record of 12 meters (~39 feet) that was originally set in July 2021 and flown again in 2 subsequent flights.Credit: Space.com | footage and gr
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SpaceX Launches AsiaSat 6 Satellite | Video
Added 722 Views / 0 LikesSpaceX Launches AsiaSat 6 Satellite | Video
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04:44
Catastrophic Flooding possible for large areas of the East Coast
Added 482 Views / 0 Likes24 Hours away from the Partial Solar Eclipse & the Weather situation & Atmospheric condition is already ramping up the surprises and intensifications. July was the wettest July ever for some places in the East Coast & there is a lot more rain on the way o
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ungentlemen look at Tropical Storm Cristobals' deadly flood potential & PNW Severe Weather potential
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big SNOWICERAIN STORM 2022: part. 1- Happy New Year, y'all! Mercury is still retrograde. also, WTF.
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19:37
American Volcano Erupts Again & Tears new Alaskan Island in 1/2
Added 606 Views / 0 LikesAmerican Volcano Erupts Again & Tears new Alaskan Island in 1/2
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15:45
Snowball planets might have living Aliens + Volcanoes & Changing Climate
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