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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27:16
NASA's SpaceX Crew-8 astronauts and cosmonaut arrive in Florida ahead of launch
Added 33 Views / 0 LikesCommander Matthew Dominick, pilot Michael Barratt, mission specialists Jeanette Epps and Aleksandr Grebenkin arrived at the Kennedy Space Center in Florida on Feb. 25, 2024. They are scheduled to launch to the International Space Station on March 1. Credi
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01:07
First pics! See Intuitive Machines' lander from orbit and surface of moon
Added 28 Views / 0 LikesThe Intuitive Machines' Nova-C "Odysseus" lander has delivered its first image from the surface of the moon. Also, see the NASA's Lunar Reconnaissance Orbiter view of the lander from moon orbit. Credit: Space.com | Intuitive Machines / NASA/GSFC/Arizona S
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01:05
Mars helicopter Ingenuity missing rotor blades in new Perseverance rover pic
Added 35 Views / 0 LikesMars helicopter Ingenuity appears to be missing rotor blades in new Perseverance rover image captured on Feb. 25, 2024. The rover's SuperCam Remote imager was used to capture the pic. Credit: Space.com | NASA/JPL-Caltech | edited by [Steve Spaleta](https:
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09:40
WTF!?! OH. MY. GOSH. report: Stay cool.
Added 40 Views / 0 LikesPlanetary Defense is a team mission.Peace is the goal.Stay cool.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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09:12
SpaceX launches 24 Starlink satellites on 18th mission of 2024, nails landing
Added 39 Views / 0 LikesA SpaceX Falcon 9 rocket launched 24 Starlink satellites from Cape Canaveral Space Force Station in Florida on Feb. 25, 2024. The first stage of the rocket landed a drone ship in the Atlantic Ocean shortly after separation. Credit: SpaceX
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03:00
Flying to the edge of space on a 'Spaceship Neptune' balloon ride - What to expect
Added 22 Views / 0 LikesLearn what to expect on your ride to the edge of space aboard Space Perspective's Spaceship Neptune capsule. CEO Jane Poynter explains what the high-altitude balloon ride is like. Credit: Space.com | Space Perspective | produced & edited by Steve Spaleta
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02:51
very WTF!? 3 X-Class Solar Flares! Cyber Attack! Return of the Ominous Anonymous Balloons!
Added 31 Views / 0 Likesalso,ulysses on the moonhello, how are you?Stay cool.God bless everyone.Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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03:16
What’s Behind This Door? -Neutral Buoyancy Lab
Added 29 Views / 0 LikesAs you drive by buildings at NASA's Johnson Space Center (JSC), did you ever stop to wonder what's behind some of the doors? We did too, so we created "What's Behind this Door?" series. These will be 2- 3-minute video series targeted for both JSC employee
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Watch Live! Intuitive Machines' moon landing - What's the status? | News Briefing
Added 35 Views / 0 LikesIntuitive Machines and NASA are holding a news briefing on the status of the "Odysseus" spacecraft's moon landing at 5pm ET on Feb. 23, 2024. Broadcast courtesy: NASA
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53:14
NASA’s SpaceX Crew-8 Mission Training Resource Reel
Added 34 Views / 0 LikesNASA’s SpaceX Crew-8 crew trains for their upcoming mission to the International Space Station. Their training took place across the world, most notably at NASA’s Johnson Space Center in Houston, Texas, and at SpaceX Headquarters in Hawthorne, California.
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01:26
Wow! Sun unleashes massive X6.3-class flare, biggest since 2017 - See in 4K
Added 33 Views / 0 LikesSunspot AR3590 blasted an X6.3 class solar flare on Feb. 22, 2023, the biggest flare since 2017. The same sunspot previously unleashed X1.8 and X1.7-class solar flares within a few hours of one another on Feb. 21-22, 2024.Credit: Credit: Space.com | foota
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08:37
SpaceX launches Starlink batch on booster's record-tying 19th flight, nails landing
Added 42 Views / 0 LikesSpaceX launched 22 Starlink satellites from Vandenberg Space Force Base in California on Feb. 22, 2023 at 11:11 p.m. EST (8:11 p.m. local California time; 0411 GMT on Feb. 23). Full Story: https://www.space.com/spacex-starlink-launch-group-7-15According t
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03:37
Space to Ground: It's All About the Science: Feb.23, 2024
Added 38 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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01:06
Sun unleashes two big X-flares as US suffers cell phone outages, unclear if related - See in 4K
Added 25 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
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01:21
Space Perspective unveils high-altitude balloon capsule for test flights to edge of space
Added 27 Views / 0 LikesThe completed prototype vehicle for Space Perspective's high-altitude balloon flight service has been revealed by the company, ahead of the capsule's first test flights to the edge of space.Credit: Space Perspective
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Watch Live! Intuitive Machines Landing of the First Privately Funded U.S. Moon Lander
Added 28 Views / 0 LikesThe Odysseus moon lander, built by Houston company Intuitive Machines, completed two engine burns in deep space on Feb. 16 and Feb. 18 and is sailing on the right course through space, the company said on X. The mission lifted off on a a SpaceX Falcon 9 r
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01:35
Using a VR headset on space station - Astronaut describes experience
Added 29 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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01:05
Doomed ERS-2 satellite spotted over Italy and from space ahead of deorbit
Added 29 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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01:04
House-size asteroid to zip by closer than the moon - See an orbit animation
Added 32 Views / 0 LikesAsteroid 2024 DW will fly about 139,000 miles (224,000 km) away from Earth on Feb. 22, 2024. The space rock is estimated to be about 43 feet wide (13 m). Credit: Space.com | animation: NASA/JPL-Caltech | edited by [Steve Spaleta](https://twitter.com/steve