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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04:56
Video from Space - Weekly Highlights: Week of Sept. 6, 2020
Added 207 Views / 0 LikesVideos featured: Californian wildfires seen from Space, SpaceX releases booster cam video of a Falcon 9 launch and landing, Zero-G corporation is delivering weightless experiences, and NASA's OSIRIS-REx mission captured trajectories of particles ejected b
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02:35
Space to Ground: Studying DNA Breaks: 09/11/2020
Added 254 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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07:43
SALLY LOOKS MEAN. Puerto Rico! Florida! East Coast! GOM! PEAK HURRICANE SEASON 2020 WATCH!
Added 280 Views / 0 LikesI'm feeling a bit out of sorts.this energy is wild.God bless everyone,T LEWISONJ5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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13:46
Red Alert! Florida! East Coast! Puerto Rico! Sally* could be a Major Hurricane & a MAJOR PROBLEM.
Added 273 Views / 0 LikesThis is our RED alert storm, y'all.God bless everyone,T LEWISONJ5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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12:09
Peak Hurricane Season 2020! Two potential landfalling hurricanes to track! & DANGER ZONE world!
Added 251 Views / 0 Likesi love you Asteroid Fight Club!make me proud.God bless everyone,T LEWISONJ5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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02:36
Surprising discovery on dark matter behavior made using Hubble
Added 248 Views / 0 LikesHubble Space Telescope observations of several galaxy clusters has shed light on dark matter behavior.Credit: NASA's Goddard Space Flight Center
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00:25
Hubble Sheds Light on Small-Scale Concentrations of Dark Matter
Added 250 Views / 0 LikesThis video begins with an image from the NASA/ESA Hubble Space Telescope of the massive galaxy cluster MACSJ 1206. Embedded within the cluster are the distorted images of distant background galaxies, seen as arcs and smeared features. These distortions ar
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02:41
Rubin Observatory's giant camera snaps first 'in-lab' images
Added 231 Views / 0 LikesThe world's largest digital camera has been assembled and captured its first images. The camera will be used by the Vera C. Rubin Observatory in Chile for the Legacy Survey of Space and Time. -- 3,200 megapixels! The camera heart of future Vera Rubin Obse
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08:32
CRANKY RED ALERT! Peak Hurricane Season 2020! SIX AREAS TO MONITOR & BIG DANGER ON THE HORIZON
Added 307 Views / 0 LikesCrankywxguy has thrown up the official red alert in the time we've been monitoring so it is official go time. The clock is ticking. The next Hurricane hit is probably a matter of when not it.God bless everyone,T LEWISONJ5430 BIRDWOOD RD. #416HOUSTON TEXAS
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20:02
ASTEROID FIGHT CLUB: Mars Retrograde 2020 & the Natural Disaster Parade.
Added 290 Views / 0 LikesI told y'all 9-9-2020 was going to look & feel weird.protesting & arguing & fightingin september & october & novemberis a really bad idea.God bless everyone,T LEWISONJ5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com
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05:16
Down to Earth – Palace in the Sky
Added 222 Views / 0 LikesIn this episode of Down to Earth, former NASA astronaut Jack Fischer recalls his experiences from his time aboard the International Space Station and discusses how the spirit of exploration contributes to humanity’s future. #SpaceStation20thVideo produced
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01:10
Micro-G NExT
Added 200 Views / 0 LikesMicro-g NExT is an annual opportunity for college students to contribute to NASA missions. Through this engineering design challenge undergraduate students to design, build, and test a tool or device that addresses an authentic, current space exploration
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02:20
SAOCOM 1B | Launch and Landing
Added 163 Views / 0 LikesSped up footage from an onboard camera during Falcon 9’s launch of the SAOCOM 1B mission – SpaceX’s first launch to a polar orbit from the East Coast. After launching from Space Launch Complex 40 at Cape Canaveral Air Force Station, Falcon 9’s first stage
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01:44
'Choose something you love' - ESA astronaut gives advice to kids
Added 272 Views / 0 LikesESA astronaut Luca Parmitano has some advice for children as they look to their future. [No Place Like Home: Astronaut Luca Parmitano Reminds Us How 'Precious' Earth Is](https://www.space.com/astronaut-luca-parmitano-climate-change-message.html)Credit: ES
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02:26
SpaceX booster cam captures amazing launch and landing footage (time-lapse)
Added 247 Views / 0 LikesSpaceX's SAOCOM-1B mission was launched atop a Falcon 9 rocket on Aug. 30, 2020. A camera on the first stage of the rocket captured its launch, re-entry and touchdown at Landing Zone-1 (LZ-1) in Florida. [SpaceX launches Earth-observation satellite for Ar
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13:31
West Coast USA & Canada on Fire! Landfalling Hurricane in 12 days? Fire & Ice & IS THE WORLD ENDING?
Added 298 Views / 0 LikesWARNING: This is an Asteroid Fight Club video.God bless everyone,T LEWISONJ5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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01:07
Smoke from California wildfires seen from space
Added 256 Views / 0 LikesNOAA GOES satellites captured imagery of the smoke from wildfires raging in California on Sept. 7-8, 2020. -- California's fast-moving Creek Fire spawns 'fire cloud' visible from space: https://www.space.com/california-creek-fire-cloud-visible-from-space.
