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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09:06
RED ALERT! Wave after Wave after Wave of BIG STORMS on the Way for Eclipse Season!
Added 24 Views / 0 LikesYou are awesome.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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09:11
SpaceX launches Eutelsat 36D satellite in first of 3 planned launches in 5 hours, nails landing
Added 42 Views / 0 LikesA SpaceX Falcon 9 rocket launched the Eutelsat 36D telecommunications satellite from NASA's Kennedy Space Center in Florida on March 30, 2024. SpaceX has 2 other launches planned before the end of the day. Learn more: https://www.space.com/spacex-launch-t
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02:44
5000th comet discovered using space-based Sun observatory
Added 31 Views / 0 LikesThe ESA/NASA Solar and Heliospheric Observatory (SOHO) has officially discovered 5000 comets. Comet number 5000 was spotted in SOHO images on March 25, 2024. Full Story: https://www.space.com/soho-sun-observatory-5000-comet-discoveryCredit: NASA's Goddard
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04:53
very RED ALERT! for upcoming pre-Eclipse & Eclipse STORMS! + Comets 12/P & ATLAS A3!!!
Added 21 Views / 0 Likesstay weather woke, yo.(I meant comet c/2023 A3 Atlas not Comet ZTF)God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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04:19
Watching a SpaceX launch from NASA mission control in Houston - Raw video
Added 25 Views / 0 LikesSpace.com's Elizabeth Howell was inside mission control at NASA's Johnson Space Center during a SpaceX launch.
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01:07
Sun blasts X1-class solar flare on Holy Thursday - See spacecraft views
Added 33 Views / 0 LikesSunspot AR3615 erupted with an X1-class solar flare on Thursday March 28, 2024. NASA's Solary Dynamics Observatory captured the blast in multiple wavelengths. Credit: Credit: Space.com | footage courtesy: NASA / SDO and the AIA, EVE, and HMI science teams
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00:53
Zoom into the Milky Way's Sagittarius A* black hole! New Event Horizon Telescope image
Added 26 Views / 0 LikesA new image of supermassive black hole Sagittarius A* (Sgr A*). from the Event Horizon Telescope (EHT) collaboration "has uncovered strong and organised magnetic fields spiraling from its edge," according to ESO. Zoom into the view here. Credit: ESO/L. Ca
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03:26
Space to Ground: A Very Busy Week: March 29, 2024
Added 22 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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06:04
RED ALERT! Another X-Class Flare & BIG Storms coming! + The Lincoln Memorial was on fire.
Added 22 Views / 0 LikesEclipse season 2024 day 4: Stay cool.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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Watch Live! Final Launch of Delta IV Heavy with Secret US Satellite
Added 29 Views / 0 LikesThe final Delta IV Heavy mission, called NROL-70, will launch a classified payload for the U.S. National Reconnaissance Office. The NRO builds and operates the nation's fleet of spy satellites and rarely divulges many details about their capabilities and
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02:12
Delta IV Heavy will launch a US spy satellite on final launch! See the mission profile
Added 29 Views / 0 LikesUnited Launch Alliances Delta Heavy IV rocket will launch from Space Launch Complex-37 at Cape Canaveral Space Force Station in Florida for the final time in March 2024. The rocket will be carrying the NROL-70 mission for the National Reconnaissance Offic
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00:45
NASA astronaut returns after months on station conducting science
Added 17 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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01:18
SpaceX fires up Starship twice in preparation for flight 4 launch
Added 29 Views / 0 LikesSpaceX is getting ready for the 4th integrated test flight of the Starship rocket with a pair of test firings. The first was a full duration test fire of all six Raptor engines on March 25, 2024. The second was a single engine firing using the header tank
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02:23
Loral O’Hara – Exploring Science In Space
Added 19 Views / 0 LikesNASA astronaut Loral O’Hara is returning home after six months aboard the International Space Station. During her time on the orbiting laboratory, O’Hara contributed to dozens of scientific investigations and technology demonstrations to prepare for futur
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09:31
Walk through the new Apollo exhibit at NYC's Intrepid Museum
Added 20 Views / 0 LikesSpace.com's Tariq Malik gives you a preview of the 'Apollo: When We Went the Moon' exhibit at NYC's Intrepid Museum.
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03:07
Double Comet Solar Stamps? and energetic South Beach Florida lightning storm.
Added 27 Views / 0 LikesEclipse Season 2024 days 3:stay cool.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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01:02
NASA's Perseverance rover captures Martian moon Phobos transit the sun - Real-time view!
Added 28 Views / 0 LikesThe Perseverance Mars rover's Mastcam-Z camera the Martian moon Phobos transit the Sun on Feb. 8, 2024. See real-time and time-lapsed views here. Credit: Space.com | NASA/JPL-Caltech/ASU/MSSS/SSI | edited by [Steve Spaleta](https://twitter.com/stevespalet
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01:23
See the Milky Way's Sagittarius A* black hole in an amazing polarized Event Horizon Telescope image
Added 36 Views / 0 LikesA new image of supermassive black hole Sagittarius A* (Sgr A*). from the Event Horizon Telescope (EHT) collaboration "has uncovered strong and organised magnetic fields spiraling from its edge," according to ESO. [Full Story](https://www.space.com/black-h
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03:06
5.8 Earthquake strikes California during a barrage of Solar Flares!
Added 27 Views / 0 LikesEclipse season 2024: day 2 - stay cool.God bless everyone.Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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00:30
Pan: No zoom
Added 29 Views / 0 LikesThis image shows a globular cluster known as NGC 1651. Like the object in another recent Picture of the Week, it is located about 162 000 light-years away in the largest and brightest of the Milky Way’s satellite galaxies, the Large Magellanic Cloud (LMC)