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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03:34
See Hubble's amazing views of the outer solar system planets in 2021
Added 191 Views / 0 LikesJupiter, Saturn, Neptune and Uranus were all captured by the Hubble Space Telescope in 2021. Credit: NASA's Goddard Space Flight Center Paul Morris: Lead ProducerMusic Credits: “Crescent Moon” by Laetitia Frenod [SACEM] via Koka Media [SACEM], Universal P
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03:08
Thanksgiving Message from the International Space Station
Added 191 Views / 0 LikesAboard the International Space Station, NASA astronauts Mark Vande Hei, Raja Chari, Tom Marshburn and Kayla Barron and ESA (European Space Agency) astronaut Matthias Maurer shared their thoughts about spending Thanksgiving in orbit and the foods they plan
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02:29
Touchdown! SpaceX lands booster after launching Starlink batch
Added 191 Views / 0 LikesSpaceX's Falcon 9 first stage landed on a drone ship in the Atlantic Ocean on Feb. 4, 2021 shortly after launching 60 Starlink satellites. Credit: SpaceX
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05:24
Ice Storm Wed-Thurs leads into Big Valentine's Day Storm & Texas Blizzard?
Added 191 Views / 0 LikesI do not know exactly what will happen around Valentine's day but it will be weird. freezy & stormy for a lot of people.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THOR
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2:17:17
Sentinel-6 Michael Freilich Mission
Added 191 Views / 0 LikesSpaceX is targeting Saturday, November 21 for Falcon 9’s launch of the Sentinel-6 Michael Freilich mission from Space Launch Complex 4E (SLC-4E) at Vandenberg Air Force Base in California. The instantaneous launch window is at 9:17 a.m. PST, 17:17 UTC, an
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01:13
China's moon rover spots cube-shaped 'mystery hut' on lunar farside
Added 191 Views / 0 LikesChina's Yutu 2 rover has transmitted back to Earth an image of an odd cube-shaped object on the far side of the the moon.Credit: Space.com | CNSA/Our Space/China Central Television | edited by [Steve Spaleta](http://www.twitter.com/stevespaleta)
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03:18
4 cavities in galaxy cluster may have been blasted by black hole pair
Added 191 Views / 0 LikesChandra X-ray Observatory imagery has revealed four cavities in the "hot gas of a single galaxy cluster," according to NASA. It may be the result of a very close pair of supermassive black holes blasting jets at about the same time. Credit: NASA/CXC/A. Ho
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09:49
Red Alert! Nasty & Dangerous New Years Day Storm & wild week of Weather! Right Side of Sun go BOOM!
Added 191 Views / 0 LikesHappy New Year, Y'all.Thank you for being awesome,Asteroid Fight Club.God bless everyone,T LEWISON5430 BIRDWOOD RD. # 416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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01:13
James Webb Space Telescope’s primary mirror alignment to take months
Added 191 Views / 0 LikesThe James Webb Space Telescope’s primary mirror segments can make tiny movements to deliver the sharpest imagery possible. The alignment process is set to begin “about 40 days after launch and will take several months to complete” according to NASA’s Godd
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10:23
SpaceX launches 49 Starlink satellites, nails booster landing at sea
Added 191 Views / 0 LikesSpaceX launched 49 new Starlink satellites from Pad 39A at NASA's Kennedy Space Center in Florida on Jan. 18, 2022. The first stage of the Falcon 9 rocket landed on the "A Shortfall of Gravitas" drone ship minutes later in the Atlantic Ocean. Credit: Spac
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01:16
China's space station decorated for lunar new year by crew
Added 191 Views / 0 LikesChina's Shenzhou-13 crew Zhai Zhigang, Wang Yaping and Ye Guangfu decorated the Tiangon space station to celebrate lunar new year. Credit: Space.com | footage courtesy: China Central Television | produced & edited by Steve Spaleta (http://www.twitter.com/
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11:41
6 Storms in 16 days for Europe? Dangerous Storm Weds/Thurs USA! Sundiving Comet! MClass Solar Flare!
Added 191 Views / 0 LikesHappy 9 year Asteroid Fight Club anniversary, y'all!God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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06:47
Neptune is getting Cooler & Scientists don't know why! +Neptune sinks a Battleship.
Added 191 Views / 0 LikesThe Jupiter & Neptune conjunction has been filled with Neptune news.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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04:29
Wow! X-Class Solar Flare! Pluto Retrograde! partial Solar Eclipse! Jupiter & Venus Conjunction!
Added 191 Views / 0 LikesAll within a 48 hour span!!!!Thank you for being Awesome, Asteroid Fight Club.Have a Great Weekend.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps:
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03:04
Black hole 'delivery system' studied using Chandra and Hubble
Added 191 Views / 0 LikesNASA’s Chandra X-ray Observatory and Hubble Space Telescope have been used to study a cluster of stars, nicknamed “Nikhuli," that may be acting as a black hole "delivery system."Credit: NASA/CXC/A. Hobart
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03:22
Watch astronauts install a toilet on space station in time-lapse
Added 190 Views / 0 LikesAstronauts aboard the International Space Station recently installed a new toilet. "The new toilet should require less maintenance and extracts even more water from our waste!," according to a tweet by ESA astronaut Thomas Pesquet. Credit: ESA
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02:14
Why does NASA observe the sun in multiple wavelengths?
Added 190 Views / 0 LikesNASA's Solar Dynamics Observatory observes the sun in 10 different wavelengths. Learn how it helps expand our knowledge of the closest star to Earth. Credit: NASA Goddard Space Flight Center
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17:25
7.0 Earthquake Panama! Super active July Sun! Southwest Monsoon! East coast Smoke & Storms! ePumps.
Added 190 Views / 0 LikesWarning: i am in a really good mood & there is cussing & some nonsense.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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00:15
Word Bank: Planetary Nebula
Added 190 Views / 0 LikesMore information and download options: http://esahubble.org/videos/wordbank_planetary-nebula/Credit:ESA/Hubble (M. Kornmesser)