UFO Secret and Mysteries
Welcome
Login

Outer Space & Universe

Date

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)

 

  • Watch live! NASA to deliver Artemis moon campaign update ahead of change in leadership

    Watch live! NASA to deliver Artemis moon campaign update ahead of change in leadership

    by Added 94 Views / 0 Likes

    Current NASA leadership will deliver an update on the "Artemis campaign" that includes the Space Launch System (SLS) rocket, Orion spacecraft, along with the human landing systems, next-generation spacesuits, Gateway lunar space station and more. Particip

  • 02:27 SpaceX Starship launch seen from Internationl Space Station

    SpaceX Starship launch seen from Internationl Space Station

    by Added 64 Views / 0 Likes

    The sixth launch of SpaceX's Starship on Nov. 19, 2024 was captured by external cameras aboard the International Space Station. Credit: NASA Johnson Space Center

  • 03:01 See Jared Isaacman, Trump's pick for NASA chief, walk in space in SpaceX highlights

    See Jared Isaacman, Trump's pick for NASA chief, walk in space in SpaceX highlights

    by Added 43 Views / 0 Likes

    The Polaris Dawn mission conducted the first private spacewalk in September 2024. See highlights from the mission. The Polaris Dawn crew was Jared Isaacman (President-elect Trump's pick for NASA administrator), Scott "Kidd" Poteet, Sarah Gillis and Anna M

  • 01:05 Stadium-size asteroid safely flies by Earth in orbit animation

    Stadium-size asteroid safely flies by Earth in orbit animation

    by Added 44 Views / 0 Likes

    Asteroid 2020 XR flew about 1.37 million miles (2.2M km) away from Earth on Dec. 4, 2024. The space rock is estimated to be about 300-700 km (248-434 miles) wide. Credit: Space.com | animation courtesy: 2024 NEO Coordination Centre - European Space Agency

  • 09:03 Blastoff! SpaceX launches Starlink batch on booster's record-breaking 24th flight, nails landing

    Blastoff! SpaceX launches Starlink batch on booster's record-breaking 24th flight, nails landing

    by Added 55 Views / 0 Likes

    A SpaceX Falcon 9 rocket launched 24 Starlink satellites from Florida's Cape Canaveral Space Force Station on Dec. 4, 2024 at 5:13 a.m. EST (1013 GMT). It was the 24th launch for this Falcon 9's first stage, according to a SpaceX mission description. That

  • 02:56 Views of Starship Flight 6 from International Space Station

    Views of Starship Flight 6 from International Space Station

    by Added 77 Views / 0 Likes

    While orbiting approximately 250 miles above Earth, external cameras aboard the International Space Station captured the sixth test flight of SpaceX’s Starship after liftoff at 4 p.m. CST on Tuesday, Nov. 19. For Artemis III, the first crewed return to th

  • Watch live! Vega-C rocket to launch Sentinel-1C satellite in return to flight

    Watch live! Vega-C rocket to launch Sentinel-1C satellite in return to flight

    by Added 52 Views / 0 Likes

    On Wednesday, December 4th the Arianespace Vega-C launcher, which is smaller and lighter than its predecessor, will launch the Sentinel-1C spacecraft and you can watch the action live here!Broadcast courtesy: Arianespace

  • 01:07 James Webb Space Telescope delivers amazing view of spiral galaxy - See in 4K

    James Webb Space Telescope delivers amazing view of spiral galaxy - See in 4K

    by Added 53 Views / 0 Likes

    The James Webb Space Telescope's s MIRI and NIRCam instruments have captured an amazing view of spiral galaxy NGC 2090. The galaxy is about 37 million light years away in the Columbia constellation. Also, see a view of NGC 2090 from the Hubble Space Teles

  • 15:26 UFO DEFCON WTF? Will there be an Alien Invasion tomorrow?

    UFO DEFCON WTF? Will there be an Alien Invasion tomorrow?

    by Added 84 Views / 0 Likes

    Clif High says Yes due to the Joe Rogan Donald Trump Podcast signal.lol wut? no srzly UFO activity has had a large uptick lately.Stay cool.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewisonhttps://www.patreon.com/thornews

  • 03:39 Planets, winter stars and Geminid meteors in Dec. 2024 skywatching

    Planets, winter stars and Geminid meteors in Dec. 2024 skywatching

    by Added 86 Views / 0 Likes

    See Venus, Jupiter, Saturn and Mars this month. Also, see the Winter Stars, Winter Triangle, the Geminid Meteor Shower. Night sky: What you can see this month: https://www.space.com/16149-night-sky.htmlBest night sky events this month - stargazing maps: h

  • 01:08 Spacex Starlink satellites swarm like ‘cosmic fireflies’ in time-lapse from space

    Spacex Starlink satellites swarm like ‘cosmic fireflies’ in time-lapse from space

    by Added 73 Views / 0 Likes

    NASA astronaut Don Pettit captured SpaceX Starlink satellites swarming in the distance in an amazing time-lapse captured from the International Space Station. Credit: Space.com | footage courtesy: NASA/Don Pettit | edited by [Steve Spaleta](https://www.in

  • 01:34 China launches Long March 12 rocket on maiden flight with experimental satellites

    China launches Long March 12 rocket on maiden flight with experimental satellites

    by Added 71 Views / 0 Likes

    China's Long March 12 rocket launched for the first time ever from the Hainan Commercial Spacecraft Launch Site on Nov. 30, 2024. See footage of the launch, engine tests, an animation and more!Credit: Space.com | footage courtesy: China Central Television

  • 08:25 SpaceX launches next-gen US spy satellites to complete doubleheader, nails landing

    SpaceX launches next-gen US spy satellites to complete doubleheader, nails landing

    by Added 93 Views / 0 Likes

    A SpaceX Falcon 9 rocket launched a set of spacecraft for the National Reconnaissance Office (NRO), as well as 20 Starlink satellites from California's Vandenberg Space Force Base on Nov. 30, 2024 at 3:10 a.m. EST (0810 GMT; 12:10 a.m. local time). The li

  • 09:02 Blastoff! SpaceX launches 24 Starlink satellites at midnight, nails landing

    Blastoff! SpaceX launches 24 Starlink satellites at midnight, nails landing

    by Added 68 Views / 0 Likes

    A SpaceX Falcon 9 rocket launched 24 Starlink spacecraft from Cape Canaveral Space Force Station on Nov. 30. 2024 at midnight EST (0500 GMT).The Falcon 9's first stage returned to Earth about eight minutes after liftoff as planned, touching down on the Sp

  • 01:00 Fruit flies in space! Chinese astronauts show experiment on Tiangong station

    Fruit flies in space! Chinese astronauts show experiment on Tiangong station

    by Added 108 Views / 0 Likes

    Chinsese astronauts are conducting experiments with fruit flies and more aboard the Tiangong space station. Credit: China Central Television (CCTV)

  • 02:01 Thanksgiving In space! Whats on the ISS menu?

    Thanksgiving In space! Whats on the ISS menu?

    by Added 83 Views / 0 Likes

    NASA astronauts aboard the International Space Station talk about whats on the menu for Thanksgiving. Credit: NASA

  • 00:30 Pan Video: NGC 2090

    Pan Video: NGC 2090

    by Added 66 Views / 0 Likes

    Featured in this NASA/ESA/CSA James Webb Space Telescope Picture of the Month is the spiral galaxy NGC 2090, located in the constellation Columba. This combination of data from Webb’s MIRI and NIRCam instruments shows the galaxy’s two winding spiral arms

  • 00:30 Transition video: Hubble and Webb's views of NGC 2090

    Transition video: Hubble and Webb's views of NGC 2090

    by Added 66 Views / 0 Likes

    This video tool features the spiral galaxy NGC 2090, located in the constellation Columba. The first image features the combination of data from Webb’s MIRI and NIRCam instruments shows the galaxy’s two winding spiral arms and the swirling gas and dust of

  • 09:02 Blastoff! SpaceX launches 24 Starlink satellites, nails 375th booster recovery

    Blastoff! SpaceX launches 24 Starlink satellites, nails 375th booster recovery

    by Added 61 Views / 0 Likes

    A SpaceX Falcon 9 rocket launched 24 Starlink satellites from NASA's Kennedy Space Center on Nov. 26, 2024 at 11:41 p.m. EST (0441 GMT on Wednesday, Nov. 27).The Falcon 9's first stage returned to Earth about eight minutes after launch as planned, touchin

  • 06:40 Space to Ground: Six Minutes of Serenity: Nov. 27, 2024

    Space to Ground: Six Minutes of Serenity: Nov. 27, 2024

    by Added 78 Views / 0 Likes

    Take some time during this holiday season and enjoy a few minutes of serenity as we offer a glimpse of the beauty of our home planet from the vantage point of the International Space Station. Got a question or comment? Use #AskNASA to talk to us.Learn mor

RSS