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: The eponymous NGC 3783
Added 20 Views / 0 LikesMore information and download options: http://esahubble.org/videos/potw2416a/Credit:ESA/Hubble & NASA, M. C. Bentz, D. J. V. Rosario, N. Bartmann (ESA/Hubble)Music: Stellardrone - Billions and Billions
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01:12
Fly over a mountain and lava lake on Jupiter's moon Io! Animation from spacecraft data
Added 20 Views / 0 LikesNASA Juno spacecraft data has been used to create an animation of "Steeple Mountain" and a lava lake known as Loki Patera on Jupiter's moon Io. Full Story: https://www.space.com/jupiter-moon-io-juno-flyover-video-2024Credit: Space.com | NASA/JPL-Caltech/S
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03:35 New
The energy is wild right now. Giant Tornadoes & everything else.
Added 20 Views / 0 Likesstay cool, drive safe, have a good weekend.fiesta!God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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06:29 New
OFF THE CHARTS PARTICULARLY DANGEROUS TORNADO HAIL & FLASH FLOOD SITUATIONS USA TODAY!
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09:09
Blastoff! SpaceX launches 23 Starlink satellites from Florida, nails landing
Added 19 Views / 0 LikesA SpaceX Falcon 9 rocket launched 23 Starlink satellites from Florida's Cape Canaveral Space Force Station on April 23, 2024 at 6:17 p.m. EDT (2217 GMT).If all goes according to plan, the Falcon 9's first stage will come back to Earth for a vertical landi
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11:12
Blastoff! Rocket Lab launches NASA solar sail tech and Korean satellite
Added 19 Views / 0 LikesA Rocket Lab Electron rocket launched the NEONSAT-1 Earth-observation satellite and NASA's Advanced Composite Solar Sail System (ACS3) from New Zealand on April 23, 2024 at 6:14 p.m. EDT (2214 GMT; 10:14 a.m. on April 24 New Zealand time). Full Story: htt
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03:18 New
Space Station Crew Prepares Science for Dragon Departure
Added 19 Views / 0 LikesYour science is ready for delivery. ????NASA astronaut Matthew Dominick closes out the Dragon spacecraft in preparation for its scheduled departure in late April. Dragon will return to Earth with samples and hardware from several experiments for further s
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00:45
NASA astronaut returns after months on station conducting science
Added 18 Views / 0 LikesAfter six exciting months aboard the space station, NASA astronaut Loral O’Hara is scheduled to return on Apr 6. While aboard the orbiting laboratory, O'Hara conducted dozens of science activities and technology demonstrations that benefit future explorat
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02:07
Fermi telescope does not detect gamma-rays from nearby supernova, NASA explains
Added 18 Views / 0 LikesNASA’s Fermi Gamma-ray Space Telescope "detected none of the high-energy gamma-ray light" from a nearby supernova. NASA explains. Credit: NASA Goddard Space Flight Center
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03:17 New
Tour a Boeing Starliner simulator with two NASA astronauts!
Added 18 Views / 0 LikesNASA Boeing Starliner astronauts Butch Wilmore and Suni Williams, both part of Crew Flight Test, show off the Boeing Mission Trainer at NASA's Johnson Space Center. The simulator helped prepare them for their International Space Station mission.Credit: NA
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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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02:53
Max Space expandable habitats - 'maximizing space in space'
Added 17 Views / 0 LikesMax Space expandable habitat technology could reduce costs and maximize space...in space. Credit: Max Space
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01:14
Boeing Starliner on the move at NASA ahead of 1st astronaut mission!
Added 17 Views / 0 LikesBoeing's Starliner rolled towards its Atlas V rocket at NASA's Kennedy Space Center on April 16, 2024. The spacecraft was integrated to the rocket later that day for its first launch with astronauts no earlier than May 4, 2024. Credit: BoeingMusic:Impact
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Watch Live! China's Shenzhou 18 crew launches to Tiangong space station
Added 17 Views / 0 LikesA Long March 2F rocket will launch the Shenzhou 18 crew to the Tiangong space station from the Jiuquan Satellite Launch Center on April 25, 2024. Broadcast feed from the Jiuquan Satellite Launch Center in the Gobi Desert courtesy China Central Television
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01:06
See SpaceX fire up Starship's flight 4 Super Heavy booster in real-time and slow motion
Added 16 Views / 0 LikesSpaceX test fired a Super Heavy booster in preparation for Starship's 4th test flight. See real-time and slow motion views of the test which occurred on April 5, 2024 at Starbase site in South Texas. Credit: Space.om | SpaceX | edited by [Steve Spaleta](h
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02:13 New
Watch Boeing Starliner fly to space in ascent profile animation
Added 16 Views / 0 LikesThis animation shows Boeing Starliner launching to space on board a United Launch Alliance Atlas V rocket. Starliner is one of two spacecraft built to carry astronauts to and from the International Space Station.Credit: Boeing
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07:02 New
RED ALERT! 5+ Tornadoes on the Ground in Oklahoma! North Texas on Alert until 3 am! Wild 36 hours!
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00:30 New
Pan: IC 776
Added 16 Views / 0 LikesFeatured in this Hubble Picture of the Week this week is the dwarf galaxy IC 776. This swirling collection of stars new and old is located in the constellation Virgo — in fact, in the Virgo galaxy cluster — 100 million light-years from Earth. While a dwar
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00:30 New
Transition video: Webb's two new views of the Horsehead Nebula
Added 15 Views / 0 LikesThe NASA/ESA/CSA James Webb Space Telescope has captured the sharpest infrared images to date of one of the most distinctive objects in our skies, the Horsehead Nebula. These observations show a part of the iconic nebula in a whole new light, capturing it