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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08:03
International Space Station flies over Hurricane Idalia after it makes landfall in Florida
Added 69 Views / 0 LikesThe International Space Station flew over Hurricane Idalia a few hours after in made landfall on Aug. 30, 2023 as a dangerous category 3 storm. Credit: NASA
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07:54
April 2017 Skywatching: Planets, Constellations and Lyrid Meteors | Video
Added 479 Views / 0 LikesApril 2017 Skywatching: Planets, Constellations and Lyrid Meteors | Video
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03:24
Ariane 5 rocket launches Eutelsat and Indian satellites
Added 381 Views / 0 LikesThe EUTELSAT KONNECT and the Indian Space Research Organization's GSAT-30 communications satellites launched atop an Ariane 5 rocket on Jan. 16, 2020 from the Guiana Space Center. Credit: Arianespace
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00:43
SpaceX launches new Starlink batch, nails landing - Oct. 20, 2022
Added 121 Views / 0 LikesA Falcon 9 rocket launchrd the Starlink Group 4-36 satellites from Space Launch Complex 40 at Cape Canaveral Space Force Station in Florida on Oct. 20, 2022. The video highlights the launch and first stage droneship landing.Credit: SpaceX
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01:12
Watch 2021's only total solar eclipse in this 1-minute time-lapse
Added 149 Views / 0 LikesThe total solar eclipse on Dec. 4, 2021 was captured from Union Glacier, Antarctica. -- The only total solar eclipse of 2021 creates dazzling sight over Antarctica: https://www.space.com/total-solar-eclipse-2021-over-antarctica-videoCredit: Theo Boris/Chr
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Strongest Solar Flare In Nearly Two Months Seen By Spacecraft | Video
Added 673 Views / 0 LikesAn M2.8 class flare erupted from Sunspot AR1865 on October 9th, 2013. NASA's Solar Dynamics Observatory captured the fireworks. (looped)
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Wow! Rarely Seen Double Asteroid Imaged by Radar Observatories
Added 385 Views / 0 LikesThe Arecibo Observatory and the Green Bank Observatory pinged binary asteroid YE5 during a recent flyby of Earth. The asteroids were 3.7 million miles (6 million kilometers) away on June 21, 2018. -- Full Story: https://www.space.com/41154-rare-binary-ast
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Zoom Into the Supernova Remnant Expansion 1E 0102.2-7219
Added 167 Views / 0 LikesThis ESA/Hubble video zooms into an expanding, gaseous corpse — a supernova remnant — known as 1E 0102.2-7219. It is the remnant of a star that exploded long ago in the Small Magellanic Cloud, a satellite galaxy of our Milky Way located roughly 200 000 li
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Hurricane Lee's eye lit up by lightning in ominous view from plane
Added 70 Views / 0 LikesAn amazing view of Hurricane Lee's eye was captured during an Air Force Reserve's Hurricane Hunters flight on Sept. 7, 2023. The eye was lit up by several lightning flashes. Credit: Space.com | footage courtesy: 403rd Wing Public AffairsMusic: Through Sto
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Fireball Photobomb! Streaking Meteor Makes Surprise Appearance | Video
Added 610 Views / 0 LikesFireball Photobomb! Streaking Meteor Makes Surprise Appearance | Video
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00:54
China's new spacecraft will be partially reusable
Added 303 Views / 0 LikesThe 'return module' of China's spacecraft will be reusable according to China Central Television. - China readies its new deep-space crew capsule for 1st test flight: https://www.space.com/china-deep-space-crew-capsule-launch-prep.htmlCredit: Space.com /
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non-sense & chit chat.
Added 103 Views / 0 Likesyou are awesome.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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'Mystery hut' on moon, Japanese billionaire & X-ray telescope launch in VFS Weekly
Added 120 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. Billionaire Yusaku Maezawa, his production assistant Yozo Hirano and cosmonaut Alexander Misurkin launched to the International Space
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Curiosity Drives Itself With Autonav Tech | Video
Added 583 Views / 0 LikesThe Mars Science Laboratory's navigation technology allows controllers to simply determine a destination and let the rover figure out how to drive there. The software searches for obstacles and holes, then safely avoids them.
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04:39
SpaceX Lands Rocket on Drone Ship In Really Bad Weather
Added 393 Views / 0 LikesAfter launching 10 Iridium Next satellites through really thick fog, the first stage of SpaceX's Falcon 9 rocket attempted to land on a drone ship in the Pacific Ocean in the most challenging weather conditions the private spaceflight company ever faced..
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Mars landing prep! NASA's Perseverance rover testing highlights
Added 191 Views / 0 LikesAll aspects of NASA's Perseverance rover was run through a series of tests prior to launch. The rover is scheduled to land in Jezero Crater on Mars on Feb. 18, 2021. Credit: NASA/JPL-Caltech
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08:41
Blastoff! SpaceX lofts 22 Starlink satellites in 64th orbital launch of 2023, nails landing
Added 74 Views / 0 LikesA SpaceX Falcon 9 rocket launched 22 Starlink spacecraft from Cape Canaveral Space Force Station in Florida on Friday at 11:38 p.m. EDT (0338 GMT on Sept. 16). Credit: SpaceX
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05:34
Monster Storms are lining up in the Pacific Ocean
Added 597 Views / 0 LikesMonster Storms are lining up in the Pacific Ocean