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
RED ALERT! 70 foot waves with Hurricane Lee! 4.1 Earthquake near Austin! China airshow over Taiwan!
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10:15
Red Alert! 72 Hours of Severe Weather & v dangerous Thursday! Solar Storms! Super Bloodmoon eclipse!
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04:41
Red Alert! 72 Hours of Severe Weather starts tomorrow from Dallas to Florida! More California Storms
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01:57
Red Alert! 8 Hurricanes/Cyclones/Waves on Earth Peak Hurricane Season day 2 of 60
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09:40
Red Alert! 9000000 people impacted by NYC Flash Flood Emergency! Multi-Vortex Tornadoes&PowerOutages
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12:23
Red Alert! 91L is headed to Texas & could become a Hurricane! Hurricane Douglas headed to Hawaii!
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08:34
RED ALERT! A Hurricane is probably going to hit Florida in 117 hours.
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02:24
RED ALERT! A Hurricane may hit Florida or USA Coast on August 29th ish 2023!
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08:11
RED ALERT! A very STORMY & weird week has just begun!
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10:32
Red Alert! ALL* THE BAD NEWS! The next two weeks are going to be wild, dangerous & unsettling.
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05:52
Red Alert! An Icy, Snowy & Freezy 10 Day storm period is already leading to Major problems & Danger
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13:44
RED ALERT! Another Flood Watch for Los Angeles & More Storms to come! + Big South & East Banger!
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06:04
RED ALERT! Another X-Class Flare & BIG Storms coming! + The Lincoln Memorial was on fire.
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15:06
Red Alert! April has been Stormy & will keep being Stormy & the Storm 1 week from now will be NASTY!
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03:49
Red Alert! Arkansas et al! Super Freak* 1200 mile pre-eclipse storm dropping dangerous tornadoes!
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09:36
RED ALERT! Asteroid 2023 UB is going to pass Earth at ZERO Lunar Distances! & Odd Earth's Core News!
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03:13
RED ALERT! Asteroid 2024 GJ2 might hit Earth today! MAJOR STORM next week! Volcano Smoke Rings!
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10:17
RED ALERT! Asteroid Fight Club Australia & Puerto Rico & Earthquakes Et AL.
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06:56
Red Alert! Atmospheric Rivers to melt California record Snowpack! Flooding Dangers Abound.
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12:45
Red alert! bad East Coast storms Freak Brazil Snowstorm! WTF? 6 Sunspots to Zero in 1 wk! SW Monsoon
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