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
Hubble and Webb Observe II ZW 96
Added 87 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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00:43
China fires up 'domestically-developed' reusuable rocket engine for 1st time (no sound)
Added 87 Views / 0 LikesChina has test-fired reusable rocket engine that has 130-tons of thrust. The test occurred on Nov. 26, 2022 at a facility in Xi'an, Shaanxi Province in northwestern China.Credit: China Central Television (CCTV)
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01:26
Near-Earth Object Count Updated | Planetary Defense: By the Numbers - December 2022
Added 87 Views / 0 Likes☄️ What do we know about the asteroids and comets in Earth's neighborhood? Planetary defense — which includes finding, tracking, and characterizing these near-Earth objects — is part of our mission. Here's what we've found so far.Learn more about Planetar
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01:05
See the Artemis 1 spacecraft and moon ahead of crucial engine burn in time-lapse
Added 87 Views / 0 LikesNASA's Artemis 1 Orion spacecraft will perform an engine burn when its just 79 miles (128 kilometers) above the lunar surface on Dec. 5, 2022. Here is a time-lapse shortly before the burn when the spacecraft was about 6,000 miles (9,656 km) from the moon.
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23:28
NASA highlights Artemis 1 from launch to splashdown
Added 87 Views / 0 LikesRelive the Artemis 1 mission with highlights from launch on Nov. 16 to splashdown on Dec. 11. [Full Story](https://www.space.com/artemis-1-orion-splashdown-moon-mission-success)Credit: NASA Johnson Space Center
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1:08:19
Starlink Mission Control Audio
Added 87 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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01:06
James Webb Space Telescope snaps 90,000 light-year 'wreath' - See in 4K
Added 87 Views / 0 LikesThe James Webb Space Telescope has captured imagery of spiral galaxy NGC 7469, which is 90,000 light-years in diameter. The galaxy is "roughly 220 million light-years from Earth in the constellation Pegasus," according to NASA/ESA. Credit: ESA/Webb, NASA
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02:07
See 133 days of the Sun in 2 minute time-lapse
Added 87 Views / 0 LikesWatch the Sun over the course of 133 days in 2022, as viewed by NASA Solar Dynamics Observatory. The time-lapse runs from August to December. Credit: NASA's Goddard Space Flight CenterScott Wiessinger (PAO): Lead ProducerTom Bridgman (SVS): Lead Visualize
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08:43
Red Alert! 23 Feet of Snow for Sierra Nevada! a foot of Rain for South California? Brazil Deja Vu.
Added 87 Views / 0 Likesi hope you are well.God bless everyone,T LEWISONhttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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OneWeb Launch 16 Mission Control Audio
Added 87 Views / 0 LikesThis is the vehicle trajectory and mission control audio without any additional commentary. There may be very long periods of silence. For our full hosted webcast, visit https://www.spacex.com/launches/
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05:08
4.2 Earthquake Malibu, California! Major ICE STORM next week ?!? Near Earth Asteroid BU & Comet ZTF!
Added 87 Views / 0 LikesYou are very cool.God bless everyone,T LEWISONhttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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19:10
Starlink Mission
Added 87 Views / 0 LikesSpaceX is targeting Thursday, February 2 at 2:58 a.m. ET (7:58 UTC) for a Falcon 9 launch of 53 Starlink satellites to low-Earth orbit from Launch Complex 39A (LC-39A) at NASA’s Kennedy Space Center in Florida. If needed, there are additional launch oppor
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02:20
US shot down 'high-altitude airborne object' off Alaska coast, Pentagon press secretary explains
Added 87 Views / 0 LikesPentagon Press Secretary Air Force Brig. Gen. Pat Ryder talks about the "'high-altitude airborne object'" shot down by the US military off the coast of Alaska on Feb. 10. 2023. Ryder also gives an update about the recovery efforts for the Chinese balloon
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01:06
Milky Way's supermassive black hole 'spaghettifies' filament of gas - Spotted by Keck Observatory
Added 87 Views / 0 LikesA massive filament of gas and dust, designated X7, has been elongated during its long approach to the Milky Way galaxy's supermassive black hole Sagittarius A*. See W.M. Keck Observatory imagery of X7 and an animation of its closest approach to the black
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01:54
Preview NASA's SpaceX Crew-6 launch in this mission trailer
Added 87 Views / 0 LikesNASA's SpaceX Crew-6 mission scheduled to lift-off from Launch Pad 39A at the Kennedy Space Center in Florida on Feb. 27, 1:45 a.m. EST (0645 GMT). How to watch live: https://www.space.com/spacex-crew-6-astronaut-flight-watch-liveThe first United Arab Emi
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06:51
WTF? Kazakhstan repos part of Russia's space program? & RED ALERT! Atmospheric Rivers & Nor'easter!
Added 87 Views / 0 Likeswarning: i am in a weird mood in this video.Stay cool & Pray for peace. God bless everyone,T LEWISONhttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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01:02
'Butterfly-shape' coronal mass ejection captured by sun-observing spacecraft
Added 87 Views / 0 LikesThe NASA/ESA Solar & Heliospheric Observatory captured a 'butterfly-shaped' coronal mass ejection erupt from the sun on March 9, 2023. Full Story: https://www.livescience.com/stunning-plasma-winged-butterfly-coronal-mass-ejection-erupts-from-the-suns-fars
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09:02
SpaceX launches 56 Starlink satellites from Florida, nails landing
Added 87 Views / 0 LikesA SpaceX Falcon 9 rocket launched 56 Starlink satellites from Space Launch Complex 40 (SLC-40) at Cape Canaveral Space Force Station in Florida on March 24, 2023. Full Story: https://www.space.com/spacex-starlink-satellites-group-5-5-launchThe first stage
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04:23
New Underwater Volcano aka Seamount found 143 miles offshore of North California! and other news.
Added 87 Views / 0 LikesI hope you are hanging in there and laughing often.God bless everyone,T LEWISONhttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews