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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Space Force missile-warning satellite launches atop Atlas V rocket
Added 202 Views / 0 LikesA United Launch Alliance (ULA) Atlas V rocket launched the Designated Space Based Infrared System Geosynchronous Earth Orbit Flight 5 (SBIRS Geo-5) satellite from Space Launch Complex 41 at Cape Canaveral Space Force Station in Florida on May 18, 2021. Cr
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Pan: When one plus one (eventually) equals one
Added 30 Views / 0 LikesThis Hubble Picture of the Week features Arp 122, a peculiar galaxy that in fact comprises two galaxies — NGC 6040, the tilted, warped spiral galaxy and LEDA 59642, the round, face-on spiral — that are in the midst of a collision. This dramatic cosmic enc
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Tropical Storm Julia. She's a Super Freak Frankenstein.
Added 605 Views / 0 LikesTropical Storm Julia. She's a Super Freak Frankenstein.
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01:03
See a SpaceX Raptor engine up-close as it's transported to Starship SN4
Added 333 Views / 0 LikesA SpaceX raptor engine was transported to the Starship SN4 prototype for installation on May 11, 2020. -- SpaceX's Starship SN4 prototype passes another, tougher pressure test: https://www.space.com/starship-prototype-sn4-cryo-pressure-test.htmlCredit: SP
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WTF? The Sun just built a volleyball net
Added 453 Views / 0 LikesWTF? The Sun just built a volleyball net
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Watch the Southern Crab Nebula Form in Amazing Animation
Added 331 Views / 0 LikesThe Southern Crab Nebula was captured by the Hubble Space Telescope to celebrate its 29th anniversary. Watch how the nebula formed in this animation. -- Cosmic Crustacean Makes Great Birthday Card for Hubble's 29th Year (Image): https://www.space.com/29th
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Mercury's weird orbit delivers insight on the Sun
Added 99 Views / 0 LikesMercury has the "most oblong orbit in the solar system," and it is providing insight on how the Sun's "influence on planets," according to NASA's Goddard Space Flight Center. Credit: NASA's Goddard Space Flight Center. Miles Hatfield (Telophase): Producer
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SpaceX Internships
Added 290 Views / 0 LikesFollow seven SpaceX interns through their work days at four different SpaceX locations.
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Integrated Sierra Space Dream Chaser space plane unveiled at NASA facility
Added 26 Views / 0 LikesThe Dream Chaser space plane has been integrated with the 'Shooting Star' module at NASA's Armstrong Test Facility in Ohio. Sierra Space Chief Medical Officer and fmr. NASA astronaut Tom Marshburn talks about the benefits of runway landings for spacecraft
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Thank You Rosetta! Probe Set To Execute Collision Maneuver | Video
Added 499 Views / 0 LikesThank You Rosetta! Probe Set To Execute Collision Maneuver | Video
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New SpaceX Crew Vehicle Launched and Abort-Tested | Video
Added 905 Views / 0 LikesNew SpaceX Crew Vehicle Launched and Abort-Tested | Video
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Mission Audio Coverage of the Crew-6 Transit to the ISS
Added 71 Views / 0 LikesMission Audio Coverage of the Crew-6 Transit to the ISS
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Pan on NGC 4485
Added 301 Views / 0 LikesThis video pans over NASA/ESA Hubble Space Telescope observations of the irregular galaxy NGC 4485, located about 30 million light-years from Earth. The irregular appearance of the galaxy is the result of a close encounter with another galaxy — NGC 4490.T
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Another M-Class Solar Flare! Tornado Warnings & Watches for East Coast! G3 Geomagnetic Storm Watch!
Added 159 Views / 0 Likessorry for the not so hot audio.:(God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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SES-9 Technical Webcast
Added 458 Views / 0 LikesThis is the SES-9 Technical Webcast which will only include shots of the rocket and our countdown net audio. There will be long periods of silence. We will no longer be including John Insprucker's status updates per this Reddit thread: https://www.reddit.
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UFO in front of the Sun! Hot Heat in the West! Floods in the South! Hurricane Watch! Volcano Watch!
Added 164 Views / 0 LikesHappy June 2021, y'all.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnews$THORnews on CashApphttps://www.patreon.com/thornews
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SpaceX launches Starlink batch on 11th orbital mission of 2024, nails landing
Added 40 Views / 0 LikesA SpaceX Falcon 9 rocket launched 22 Starlink spacecraft from Vandenberg Space Force Base in California on Friday at 7:34 p.m. EST (4:34 p.m. local California time or 0034 GMT on Feb. 10). Full Story: https://www.space.com/spacex-starlink-launch-group-7-1