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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01:01
Jets from a newly forming star 'blast across space' in amazing Hubble imagery
Added 36 Views / 0 LikesMulti-star system FS Tau has been captured by the Hubble Space Telescope. "Jets emerge from the cocoon of a newly forming star to blast across space" in the imagery, according to the Hubble team. Full Story: https://www.space.com/hubble-telescope-new-star
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04:45
RED ALERT! Tsunami Watch after shallow 7.5 Magnitude Earthquake near Taiwan! Big STORMS USA!
Added 36 Views / 0 LikesStay cool.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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01:56
2024 solar eclipse! Totality over Ohio, New York and Maine in 2-minute time-lapse
Added 36 Views / 0 LikesSee totality occur over Ohio, New York and Maine in these time-lapsed views. Live Updates: https://www.space.com/news/live/solar-eclipse-live-updatesCleveland, OhioCredit: Salvatore Oriti of NASA Glenn Research CenterTupper Lake, New YorkCredit: Seth McGo
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09:06
See Delta IV Heavy's final launch in amazing rocket cam footage
Added 36 Views / 0 LikesThe United Launch Alliance's (ULA's) Delta IV heavy-lift rocket launched the NROL-70 mission from Space Launch Complex-37 at Cape Canaveral Space Force Station in Florida on April 9 at 12:53 p.m. EDT (1653 GMT). It was the final launch for the historic ro
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03:04
Hubble Telescope's stunning view of the 'Pillars of Creation' explained
Added 35 Views / 0 LikesNASA Goddard Space Flight Center's Dr. Jennifer Wiseman explains the Hubble Space Telescope's view of the Pillars of Creation, located in the Eagle Nebula. Credit: NASA's Goddard Space Flight Center Producer, Director & Editor: James LeighDirector of Phot
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01:03
Relive NASA's Spirit and Opportunity rovers landing on Mars on 20th anniversary
Added 35 Views / 0 LikesNASA's Spirit and Opportunity rovers landed on Mars in January 2004. Take a look back at their landings on the Red Planet. Credit: NASA / JPL-Caltech
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00:30
Pan of S1 N79
Added 35 Views / 0 LikesThis image from the NASA/ESA/CSA James Webb Space Telescope features an H II region in the Large Magellanic Cloud (LMC), a satellite galaxy of our Milky Way. This nebula, known as N79, is a region of interstellar atomic hydrogen that is ionised, captured
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01:13
Space Shuttle Endeavour stacked at California Science Center in amazing time-lapse
Added 35 Views / 0 LikesSpace Shuttle Endeavour was stacked with an external tank and pair of solid rocket boosters for a new exhibit at the California Science Center on Jan. 30, 2023. Credit: California Science Center | time-lapse by Space.com's [Steve Spaleta](https://twitter.
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08:16
RED ALERT! Cat 2 CaliCane headed to S. California! Texas Squall line happening now!
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10:45
very RED ALERT! HIGHEST of HIGH ALERTS for Southern California! and Tornadoes for Florida?
Added 35 Views / 0 Likesi hope you are well.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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04:24
RED ALERT! 1st* Ever Hurricane Wind Warnings up for parts of California as a Heart shape storm hits!
Added 35 Views / 0 LikesI hope you are having a wonderful weekend.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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01:42
NASA to use stereo cameras on lunar landers to study moon surface impacts
Added 35 Views / 0 LikesStereo Cameras for Lunar Plume-Surface Studies (SCALPSS) will be used to capture landings on the moon. The footage will deliver data on landing impacts on the lunar surface. Credit: NASA
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04:29
Another X-Class Solar Flare in Action right now AND the Ai has leveled up. Again.
Added 35 Views / 0 Likeswelcome to the worst THORnews video everand happy 11 year anniversary to Asteroid Fight Club!God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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01:17
Sun blasts huge X2.5-class solar flare and spits plasma - See 4K spacecraft views
Added 35 Views / 0 LikesThe sun erupted with an X2.5-class solar flare on Feb. 16, 2024. NASA's Solar Dynamics Observatory captured the fireworks in multiple wavelengths. Credit: Credit: Space.com | footage courtesy: NASA / SDO and the AIA, EVE, and HMI science teams / helioview
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08:25
Blastoff! Japan's new H3 rocket returns to flight after first test failure
Added 35 Views / 0 LikesA Japanese H3 rocket launched two small Earth-observation satellites, called CE-SAT-IE and TIRSAT, from the Tanegashima Space Center on Feb. 16, 2023. (Feb. 17 - local time). It was a return-to-flight for the rocket after its first test flight in March 20
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06:37
4.7 Magnitude Earthquake in Texas City, Texas! The largest yet in an EQ swarm!
Added 35 Views / 0 Likeshi.i hope you are doing well.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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01:05
Doomed ERS-2 satellite spotted over Italy and from space ahead of deorbit
Added 35 Views / 0 LikesESA spotted the ERS-2 satellite over Italy on Feb. 20, 2024. It will likely re-enter Earth's atmosphere on Feb. 21. HEO Robotics also captured imagery of the satellite. Credit: Space.com | footage courtesy: ESA / HEO Robotics | edited by [Steve Spaleta](h
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01:35
Using a VR headset on space station - Astronaut describes experience
Added 35 Views / 0 LikesExpedition 70 astronaut Andreas Mogensen describes the experience of using a VR headset while exercising on the International Space Station to Space.com's Elizabeth Howell. Credit: NASA
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01:06
Sun unleashes two big X-flares as US suffers cell phone outages, unclear if related - See in 4K
Added 35 Views / 0 LikesSunspot AR3590 unleashed X1.8 and X1.7-class solar flares within a few hours of one another on Feb. 21-22, 2024. Cell phone outages spiked across the United States around the same time but it is unclear if they are connected to the flares. Full Story: htt