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)
-
10:33
Astra rocket fails to deliver NASA TROPICS satellites - See the launch
Added 139 Views / 0 LikesAstra's 43-foot-tall (13 meters) Launch Vehicle 0010 (LV0010) lifted off from Cape Canaveral Space Force Station in Florida on June 12, 2022 with NASA's TROPICS-1 mission. It failed to deliver the cubesats due to the upper stage engine shutting down early
-
09:52
Hawaii Worst. Case. Scenario. Erupting Volcano & Earthquakes = Experts see No End in Sight
Added 410 Views / 0 LikesActivity is increasing & scientists and Experts say the lava, smoke, gas & ash could last for months. First Puerto Rico & now Hawaii. NOW is the time for Americans & people of the world to begin to work together as one Earth family. These are the biggest
-
01:06
Ingenuity spots Perseverance during 11th flight on Mars
Added 163 Views / 0 LikesIngenuity captured color and black & white images during its 11th flight on August 5, 2021. NASA's Perseverance rover can be seen in one of the color pics. Credit: Space.com | imagery courtesy: NASA/JPL-Caltech | produced & edited by Steve Spaleta (http:/
-
03:13
Red Alert! Hurricane to Hawaii! Possible Hurricane/TS to Texas? then Gonzalo & Hannah?
Added 291 Views / 0 LikesThe Oceans are REALLY starting to get active.Stay aware & Be prepared.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
-
03:35
The Ballad of the Overview Effect | Down to Earth
Added 73 Views / 0 LikesIn preparation for Earth Day, view our beautiful planet from above, with commentary from NASA astronauts.
-
12:53
Florida & SE ALERT! Category 4 Hurricane Dorian is now Trending West!
Added 362 Views / 0 LikesThe windshield wiper syndrome of the models is now in affect!The Models are starting to trend back to the West.This could bring devastating impacts to Florida and the South East Coast. Please monitor closely because stallingHurricanes that turn right on a
-
14:38
Planet Parade! 126 degrees in Iran! Martian bricks! Chinese Jumboat Restaurant Sinks!
Added 123 Views / 0 LikesIt's a hot & wild world.we've got a parade of planetsMercury Venus Mars Saturn Jupiter Uranus Neptune Plutorecord breaking heat across the globea strong monsoon season inboundand lots of other news.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON
-
05:57
TBRC: Hawaii Volcano could explode. How to stop Lava? Historic Montana Floods,
Added 487 Views / 0 LikesToday's Big Risk Challenges - USA & Earth Mayday 14 2018Hawaii faces major risk of a major volcano blowing eruptionS & E Florida you are on Alert for Florids & Sinkholes next 2 weeks.Montana major river flood threat through the week.El Dercho tonight in N
-
07:08
Earth observation satellite & 4 cubesats launch atop Vega rocket
Added 167 Views / 0 LikesAn Arianespace Vega rocket launched the Pléiades Neo 4 satellite and four cubesats, called BRO-4, SUNSTORM, LEDSAT and RADCUBE, from the Guiana Space Center in Kourou, French Guiana on Aug. 16, 2021. Credit: Arianespace
-
11:53
Red Alert! Hurricane Hannah warnings up for parts of South Texas! HEAVY FLOODING IS ON THE WAY!
Added 352 Views / 0 LikesHannah is at 991.9 mb of pressure & dropping.Stay aware & have a plan.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornewsTWC
-
03:17
Space to Ground: Checkmate: April 28, 2023
Added 69 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
-
01:07
Hurricanes Dorian and Juliette Seen From Space on Sept. 4
Added 222 Views / 0 LikesHurricanes Dorian (US east coast) and Julliette (off the US west coast) were capture by NOAA's GOES satelltes on Sept. 4, 2019. Story: [Astronauts in Space 'Feel the Power' of Hurricane Dorian as NASA's Florida Spaceport Braces for the Storm](https://www.
-
01:13
Partial solar eclipse only seen in space - NASA spacecraft's view
Added 111 Views / 0 LikesNASA's Solar Dynamics Observatory captured a partial solar eclipse on June 29, 2022. See its view in multiple wavelengths. Credit: Space.com | Animation & imagery credit: NASA/SDO and the AIA, EVE, and HMI science teams | edited by [Steve Spaleta](https:/
-
17:03
Subtropical Storm Alberto & Maryland Floods = Wild Weather Watch
Added 359 Views / 0 LikesWARNING: I say "FU & GTFO" in this video.https://www.paypal.me/THORnewsTHORNEWS PO BOX 35946HOUSTON TEXAS77235-5946whatever, man.http://www.stormhamster.com/entry/e052718d.htmhttps://www.tropicaltidbits.com/http://www.spaghettimodels.com/https://earth.nul
-
01:08
Tropical Storm Henri & Hurricane Grace's landfall seen from space - Aug. 21
Added 190 Views / 0 LikesNOAA's GOES-East satellite captured Tropical Storm Henri over the Atlantic Ocean and Hurricane Grace making landfall in Mexico in this time-lapsed imagery from Aug. 20-21, 2021. Credit: Space.com | Footage Courtesy: CIRA/NOAA | edited by Steve Spaleta (ht
-
02:35
Search For Alien Life - Exploring Saturn's Moon Enceladus Has Major Impact | Video
Added 596 Views / 0 LikesSearch For Alien Life - Exploring Saturn's Moon Enceladus Has Major Impact | Video