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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00:30
Pan: Hidden in a dark cloud
Added 24 Views / 0 LikesThe subject of this week’s Picture of the Week from Hubble is the spiral galaxy IC 4633, located 100 million light-years away from us in the constellation Apus. IC 4633 is a galaxy rich in star-forming activity, as well as hosting an active galactic nucle
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00:53
Mars Perseverance rover's new 'Comet Geyser' sample 'great for biosignature studies'
Added 24 Views / 0 LikesNASA's Perseverance rover on Mars has collected its 24th sample of Jezero Crater. The new 'Comet Geyser' sample is "great for biosignature studies," according to the space agency's Jet Propulsion Laboratory. Credit: NASA/JPL-Caltech
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08:56
Blastoff! SpaceX launches 23 Starlink satellites from Florida, nails landing
Added 24 Views / 0 LikesA SpaceX Falcon 9 rocket carrying 23 Starlink satellites launched from Cape Canaveral Space Force Station in Florida on April 10, 2024 at 1:40 a.m. EDT (0540 GMT). Full Story: https://www.space.com/spacex-starlink-launch-group-6-48About 8.5 minutes later,
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01:10
See Mars helicopter Ingenuity's 10.5 mile Jezero Crater trek in animated map
Added 24 Views / 0 LikesSee where NASA Mars helicopter flew during its 10.5 mile (16.7 km) Jezero Crater trek. Credit: NASA/JPL-Caltech
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09:31
Walk through the new Apollo exhibit at NYC's Intrepid Museum
Added 23 Views / 0 LikesSpace.com's Tariq Malik gives you a preview of the 'Apollo: When We Went the Moon' exhibit at NYC's Intrepid Museum.
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06:04
RED ALERT! Another X-Class Flare & BIG Storms coming! + The Lincoln Memorial was on fire.
Added 23 Views / 0 LikesEclipse season 2024 day 4: Stay cool.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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03:26
Space to Ground: A Very Busy Week: March 29, 2024
Added 23 Views / 0 LikesNASA's Space to Ground is your weekly update on what's happening aboard the International Space Station. Got a question or comment? Use #AskNASA to talk to us.Learn more about the important research being operated on Station:https://www.nasa.gov/iss-scien
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04:53
very RED ALERT! for upcoming pre-Eclipse & Eclipse STORMS! + Comets 12/P & ATLAS A3!!!
Added 23 Views / 0 Likesstay weather woke, yo.(I meant comet c/2023 A3 Atlas not Comet ZTF)God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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01:06
Stunning nebula has 'violent history' - Very Large Telescope studies
Added 23 Views / 0 Likes"Nine years’ worth of data from ESO’s Very Large Telescope Interferometer (VLTI) and other telescopes has revealed the mysterious past of an unusual pair of stars," according the European Southern Observatory. Find out more about the HD 148937 system here
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13:30
O WTF? World War III Avoided. again. Dubai Floods. Major Anomaly in Ocean*? Eris. Elon. etc.
Added 23 Views / 0 LikesThank you for being so cool.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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01:14
Chinese Shenzhou 18 crew's Long March 2F rocket rolled out the pad
Added 23 Views / 0 LikesChina's Long March-2F Y18 rocket that will launch the Shenzhou-18 crew to the Tiangong space station was rolled out to the launch pad at the Jiuquan Satellite Launch Center on April 17, 2024. Credit: Space.com | footage courtesy: China Central Television
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02:47
Space to Ground: On Top of It: April 19, 2024
Added 23 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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01:14
Boeing Starliner on the move at NASA ahead of 1st astronaut mission!
Added 22 Views / 0 LikesBoeing's Starliner rolled towards its Atlas V rocket at NASA's Kennedy Space Center on April 16, 2024. The spacecraft was integrated to the rocket later that day for its first launch with astronauts no earlier than May 4, 2024. Full Story: https://www.spa
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01:11
Digital postcards sent to Mars helicopter Ingenuity
Added 22 Views / 0 LikesNASA's Ingenuity team reads postcards sent to the little chopper on Mars. Credit: NASA / JPL-Caltech
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04:06
Space to Ground: Above the Umbra: April 12, 2024
Added 21 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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01:19
Milky Way's most massive stellar black hole discovered!
Added 21 Views / 0 LikesESA's Gaia mission, the Very Large Telescope and other ground-based telescopes have discovered stellar black hole Gaia BH3. It's mass is "33 times that of our Sun," according to the European Southern Observatory. Full Story: https://www.space.com/milky-wa
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07:39
RED ALERT! Big Storms USA this week! Flood of the Century* in China! 16 Sunspots! & the News is Wild
Added 21 Views / 0 LikesI hope you are wonderful.God bless everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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02:23
Loral O’Hara – Exploring Science In Space
Added 20 Views / 0 LikesNASA astronaut Loral O’Hara is returning home after six months aboard the International Space Station. During her time on the orbiting laboratory, O’Hara contributed to dozens of scientific investigations and technology demonstrations to prepare for futur
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04:21
STAY WEATHER WOKE THE NEXT 10 DAYS. imho. yes that includes Earthquakes, Volcanoes & Oddness.
Added 20 Views / 0 LikesStay cool.God Bless Everyone,Thttps://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
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00:30
Pan: The eponymous NGC 3783
Added 20 Views / 0 LikesMore information and download options: http://esahubble.org/videos/potw2416a/Credit:ESA/Hubble & NASA, M. C. Bentz, D. J. V. Rosario, N. Bartmann (ESA/Hubble)Music: Stellardrone - Billions and Billions