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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04:17
Planets, Eta Aquarid meteors and an occultation in May 2024 skywatching
Added 118 Views / 0 LikesFind out where to see Saturn, Mars, Mercury and Venus this month. The moon passes in front of the star Antares and the Eta Aquarid meteor shower peaks. Night sky: What you can see this month: https://www.space.com/16149-night-sky.html[Best night sky event
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10:24
SpaceX launches Worldview satellites on booster's record-tying 20th flight, nails landing
Added 118 Views / 0 LikesA SpaceX Falcon 9 rocket launched Maxar's WorldView Legion satellites from Vandenberg Space Force Base in California on May 2, 2024 at 2:36 p.m. EDT (1836 GMT; 11:36 a.m. local California time).According to Space.com, it was the 20th mission for this rock
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01:07
'Hyperactive sunspot' unleashes multiple X and M flares - Spacecraft see it!
Added 118 Views / 0 LikesSunspot AR3663 has been incredibly active with multiple X and M-class flares on May 5-6, 2024. The latest on May 6 was a powerful X4.5-class solar flare, one of the largest of the year. NASA's Solar Dynamics Observatory captured the fireworks.Credit: Spac
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01:32
China's Chang'e-6 moon mission enters lunar orbit
Added 118 Views / 0 LikesChina's Chang'e-6 mission's orbiter-lander entered lunar orbit on May 8, 2024. Peng Deyun and Cheng Yanhe from the Beijing Aerospace Control Center explain. [Full Story](https://www.space.com/china-change-6-moon-sample-return-mission-enters-lunar-orbit)Cr
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00:30
Pan: NGC 4449 (NIRCam+MIRI image)
Added 118 Views / 0 LikesFeatured in this new image from the NASA/ESA/CSA James Webb Space Telescope is the dwarf galaxy NGC 4449. This galaxy, also known as Caldwell 21, resides roughly 12.5 million light-years away in the constellation Canes Venatici. It is part of the M94 gala
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Watch Live! SpaceX's Falcon Heavy to launch GOES-U satellite
Added 118 Views / 0 LikesThe National Oceanic and Atmospheric Administration's (NOAA) GOES-R series constellation is expected to be complete in space soon, pending a successful launch of its GOES-U satellite at the end of June. The mission will be historic for many reasons, inclu
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00:30
Pan: NGC 4951
Added 118 Views / 0 LikesThis Picture of the Week from the NASA/ESA Hubble Space Telescope depicts the galaxy NGC 4951, a spiral galaxy that’s located 49 million light-years from Earth in the constellation Virgo.The data used to make this image were captured by Hubble as part of
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New Hurricane Watch! Flaming space debris over TX & OK! 6.8 & 6.0 Cuba Earthquakes! 3 on the Sun!
Added 118 Views / 0 Likeshow are you?God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewisonhttps://www.patreon.com/thornews
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01:08
Spacex Starlink satellites swarm like ‘cosmic fireflies’ in time-lapse from space
Added 118 Views / 0 LikesNASA astronaut Don Pettit captured SpaceX Starlink satellites swarming in the distance in an amazing time-lapse captured from the International Space Station. Credit: Space.com | footage courtesy: NASA/Don Pettit | edited by [Steve Spaleta](https://www.in
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00:15
wordbank_asteroid
Added 117 Views / 0 LikesMore information and download options: http://esahubble.org/videos/wordbank_asteroid/Credit:NASA & ESA
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00:30
potw2136a
Added 117 Views / 0 LikesMore information and download options: http://esahubble.org/videos/potw2136a/Credit:ESA/Hubble and NASA, A. SarajediniMusic: Andrey Klimkovsky/New Horizons
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08:54
Alien* Spaceship* San Diego! Bitcoin shiprekt! 4.5 EQ Georgia! Explosions & Tornadoes in Shanghai!
Added 117 Views / 0 LikesIt's a wild, wild world, 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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03:55
Space to Ground: Einstein's Happiest Thought: 10/07/2022
Added 117 Views / 0 LikesNASA's Space to Ground is your weekly update on what's happening aboard the International Space Station. Got a question or comment? Use #AskNASA to talk to us.Learn more about the important research being operated on Station:https://www.nasa.gov/iss-scien
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USSF-44 Mission
Added 117 Views / 0 LikesSpaceX is targeting Tuesday, November 1 at 9:41 a.m. ET (13:41 UTC) for Falcon Heavy’s launch of the USSF-44 mission to a geosynchronous Earth orbit from Launch Complex 39A (LC-39A) at Kennedy Space Center in Florida. A backup launch opportunity is availa
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Starlink Mission Control Audio
Added 117 Views / 0 LikesThis is the vehicle trajectory and mission control audio without any additional commentary. There may be very long periods of silence. For our full hosted webcast, visit https://www.spacex.com/launches/
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01:00
Zoom into NGC 5068
Added 117 Views / 0 LikesThis video takes the viewers on a journey to the barred spiral galaxy NGC 5068, whose bright central bar is visible in the upper left of this image. NGC 5068 lies around 17 million light-years from Earth in the constellation Virgo.With its ability to peer
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PSN SATRIA Mission
Added 117 Views / 0 LikesSpaceX is targeting Sunday, June 18 for Falcon 9’s launch of the PSN MFS Satria mission to a geosynchronous transfer orbit from Space Launch Complex 40 (SLC-40) at Cape Canaveral Space Force Station in Florida. The 178-minute launch window opens at 6:04 p
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04:05
WTF? Oarfish Earthquake Omen? and Hurricane Watch, for realz!
Added 117 Views / 0 Likesstay awesome.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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Starlink Mission
Added 117 Views / 0 LikesSpaceX is targeting Thursday, July 28 at 12:01 a.m. ET (4:01 UTC) for a Falcon 9 launch of 22 Starlink satellites to low-Earth orbit from Space Launch Complex 40 (SLC-40) at Cape Canaveral Space Force Base in Florida. Up to four backup opportunities are a