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)
-
03:34
Know Your Crew…One!
Added 73 Views / 0 LikesThe astronauts who will fly the first operational Crew Dragon spacecraft to the International Space Station are trained up and ready to go. After many months of work together (for some of them, years) they know each other pretty well, so we asked them to
-
06:39
Kodiak police "get to 100 ft higher ground". Canada Tsunami Warning after 8.2 Earthquake
Added 390 Views / 0 LikesKodiak police "get to 100 ft higher ground". Canada Tsunami Warning after 8.2 Earthquake
-
50:54
Koreasat-5A Webcast
Added 333 Views / 0 LikesSpaceX is targeting launch of Koreasat-5A from Launch Complex 39A (LC-39A) at NASA’s Kennedy Space Center, Florida on Monday, October 30 at 3:34 p.m. EDT, or 19:34 UTC. A backup launch window opens on Tuesday, October 31 at 3:34 p.m. EDT. The satellite wi
-
KPLO Mission
Added 74 Views / 0 LikesSpaceX is targeting Thursday, August 4 for launch of KPLO to a ballistic lunar transfer orbit from Space Launch Complex 40 (SLC-40) at Cape Canaveral Space Force Station in Florida. The instantaneous launch window is at 7:08 p.m. ET (23:08 UTC), and a bac
-
KPLO Mission Control Audio
Added 77 Views / 0 LikesThis is the vehicle trajectory and mission control audio without any additional commentary. There may be very long periods of silence. For our full hosted webcast, visit https://www.spacex.com/launches/
-
10:26
Krakatau erupts & pre-eruption evacuations in Sao Jorge! BIG STORMS USA! Earth Directed Solar Flare
Added 150 Views / 0 LikesBuckle up. the next 2 weeks are about to get wild and wilder.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
-
05:21
Krakatau Volcano Erupts! 4.6 Earthquake Hawaii Volcano! Severe Weather! Long duration M-Class Flare!
Added 172 Views / 0 LikesHappy Good Friday, y'all!God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
-
02:29
LADEE Starts Science Operations From Lunar Orbit | Video
Added 771 Views / 0 LikesLaunched September 6th, LADEE has been orbiting the Moon for weeks while diagnostics confirmed it's scientific instruments were working correctly, allowing it to begin analyzing the Moon's extremely thin exosphere.
-
00:21
Lagoon Nebula in visible and infrared light
Added 448 Views / 0 LikesThis short videoclip shows the Lagoon Nebula, which was observed to celebrate Hubble's 28th anniversary in space, first in the visible light and later on in the infrared. Both observations were made by Hubble.While the observations in visible light allow
-
02:18
Lagoon Nebula is a Sea of Starbirth | Video
Added 698 Views / 0 Likes110 light-years across and 5000 lights year from Earth, the Lagoon Nebula (M8, NGC 6523) is one of just two star-forming regions visible to the unaided eye from the northern hemisphere. Europe's VLT Survey Telescope in Chile capture these images.
-
02:37
Lagrangian Elevator To The Moon - Is It Possible? | Video
Added 447 Views / 0 LikesLiftPort Group of Seattle seems to think so. This private company proposes launching rockets from Earth to a 'Lagrange Point PicoGravity Lab' where cargo can be transferred to and from the lunar surface.
-
11:53
Lake Tahoe Evacuations, american Hurricanes & strange optimism.
Added 143 Views / 0 Likesthese are my end of august 2021 asteroid fight club thoughts.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
-
01:21
Land Astronauts on Moon In Next Decade? NASA Highlights Plan
Added 346 Views / 0 LikesNASA hopes to land astronauts on the lunar surface in the next decade. This quick highlight reel lays out the benefits. Credit: NASA
-
14:04
Land Falling Hurricanes USA September 10th & October 13th? ish?
Added 364 Views / 0 Likesmy Eris alignment & planetary orbital angular momentum theory is leading me to some big calls. We've got 6 months to prepare and I have 6 months to determine probable landfall locations.God bless everyone,Thttps://www.venmo.com/TEric-Lewisonhttps://www.pa
-
02:43
Landed Falcon 9 First Stage Test Firing
Added 350 Views / 0 LikesFalcon 9 first stage from May JCSAT mission was test fired, full duration, at our Texas rocket development facility today.
-
08:12
LANDFALL OF HURRICANE MICHAEL FROM SPACE
Added 473 Views / 0 LikesCameras outside the International Space Station captured views of Hurricane Michael at 12:58 p.m. EDT Oct. 10 from an altitude of 255 miles as the storm made landfall as a category 4 hurricane over the Florida panhandle. The National Hurricane Center repo
-
13:35
Landfalling Hurricane Danger to TX& Gulf Coast AND the North East USA both within 7 days +Medicane
Added 254 Views / 0 LikesI'm in a weird mood & i cuss in this one.Enter at your own risk.God bless everyone,T LEWISONJ5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
-
04:20
Landfalling Hurricanes* on the UK on the 12th & near Turkey on the 16th & the USA on the 20th?!?
Added 137 Views / 0 Likesit looks like it's about to get wild.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
-
04:06
Landing On A Comet Is Extremely Difficult | Video
Added 551 Views / 0 LikesLanding On A Comet Is Extremely Difficult | Video
-
02:54
Landing on Jupiter's moon Europa - NASA tests hardware
Added 54 Views / 0 LikesNASA is testing lander hardware to be used for a mission to Jupiter's moon Europa. It is an "evolution of hardware used on previous NASA lander mission," according to NASA.Credit: NASA Jet Propulsion Laboratory