Yahoo Canada Web Search

Search results

1. science.nasa.gov › astrophysics › science-questionsHow does the universe work? - Science@NASA

   science.nasa.gov › astrophysics › science-questions

   • Cached

   Dark matter, which makes up 85% of total matter in the universe, is a hypothetical type of matter that responsible for the way galaxies are organized. The upcoming Nancy Grace Roman Space Telescope, set to launch no later than May 2027, is an observatory designed to unravel the secrets of dark energy and dark matter, as well as search for and image exoplanets, and explore many other topics in ...

2. www.discovermagazine.com › the-sciences › now-meansNow Means Nothing: How Time Works In Our Universe

   www.discovermagazine.com › the-sciences › now-means

   • Cached

   Jun 1, 2018 · It does so more in the plains and less in the mountains, because the plains are closer to it. This is why the friend who stays at sea level ages more slowly. Therefore, if things fall, it is due to this slowing of time. Where time passes uniformly, in interplanetary space, things don’t fall — they float.

3. Videos

   • 

     2:21

     youtube.com

     Living and working in space

     May 31, 2019

     31.2K Views

   • 

     4:03

     youtube.com

     The Chemistry of Space | HowStuffWorks NOW

     Feb 12, 2016

     27.4K Views

   • 

     6:03

     youtube.com

     How Space-Time Works When You Look At The Stars

     Jan 29, 2021

     113.5K Views

   View all

4. www.nasa.gov › missions › station20 Breakthroughs from 20 Years of Science aboard the ... - NASA

   www.nasa.gov › missions › station

   • Cached

   Oct 26, 2020 · Why do this in space? The space station currently is the only place for performing research in long-duration microgravity. There is no substitute for actually sending humans into orbit where they can serve as test subjects for the science. Why does it matter? Traveling deep into space means spending long periods of time in microgravity.

5. science.nasa.gov › astrophysicsNASA Astrophysics - NASA Science

   science.nasa.gov › astrophysics

   • Cached

   The universe is everything. It includes all of space, matter, energy, time, and you. NASA’s Astrophysics Division is dedicated to exploring the universe, pushing the boundaries of what is known of the cosmos, and sharing its discoveries with the world. The Division continues expanding humanity’s understanding of how the universe began and evolved, how it […]

6. www.livescience.com › why-is-space-a-vacuumWhy is space a vacuum? - Live Science

   www.livescience.com › why-is-space-a-vacuum

   • Cached

   Sep 19, 2020 · But even the vacuum of space is not truly pure. Between galaxies, there's less than one atom in every cubic meter, meaning intergalactic space isn't completely empty. It has far less matter ...

7. science.nasa.gov › exoplanets › what-is-the-universeWhat is the Universe? - NASA Science

   science.nasa.gov › exoplanets › what-is-the-universe

   • Cached

   In the span of a single human lifetime, space probes have voyaged to the outer solar system and sent back the first up-close images of the four giant outermost planets and their countless moons; rovers wheeled along the surface on Mars for the first time; humans constructed a permanently crewed, Earth-orbiting space station; and the first large space telescopes delivered jaw-dropping views of ...

8. People also ask

   Why do things float in interplanetary space?

   • Where time passes uniformly, in interplanetary space, things don’t fall — they float. Here on the surface of our planet, on the other hand, things fall downward because, down there, time is slowed by the Earth.

   Now Means Nothing: How Time Works In Our Universe

   www.discovermagazine.com/the-sciences/now-means-nothing-how-time-works-in-our-universe

   See all results for this question

   How does the universe work?

   • There are many mysteries of the universe we have yet to understand. Since the early 20 th century, scientists have known that the universe is expanding. In the 1990s, researchers discovered that, surprisingly, the expansion is accelerating.

   How does the universe work? - NASA Science

   science.nasa.gov/astrophysics/science-questions/how-do-matter-energy-space-and-time-behave-under-the-extraordinarily-diverse-conditions-of-the-cosmos/

   See all results for this question

   How does space and time affect the movement of bodies?

   • Instead, each of the two gradually acts on that which is between them — space and time — modifying them just as someone immersed in water displaces the liquid around them. This modification of the structure of time influences the movement of bodies, causing them to “fall” or gravitate toward each other. (Credit: Ernst Haas/Getty Images)

   Now Means Nothing: How Time Works In Our Universe

   www.discovermagazine.com/the-sciences/now-means-nothing-how-time-works-in-our-universe

   See all results for this question

   Is intergalactic space empty?

   • Between galaxies, there's less than one atom in every cubic meter, meaning intergalactic space isn't completely empty. It has far less matter, however, than any vacuum humans could simulate in a lab on Earth. Meanwhile, "the universe keeps expanding," Faherty said, assuring that the cosmos will remain mostly vacant.

   Why is space a vacuum? - Live Science

   www.livescience.com/why-is-space-a-vacuum.html

   See all results for this question

   Why is the International Space Station a good place to study microgravity?

   • For 20 years, the astronauts aboard the International Space Station have conducted science in a way that cannot be done anywhere else. Orbiting about 250 miles above our planet, the space station is the only laboratory available for long-duration microgravity research.

   20 Breakthroughs from 20 Years of Science aboard the ... - NASA

   www.nasa.gov/missions/station/20-breakthroughs-from-20-years-of-science-aboard-the-international-space-station/

   See all results for this question

   Why should NASA commercialize low-Earth orbit?

   • Commercialization of low-Earth orbit frees up resources NASA needs to continue its exploration of space. By having companies join forces with government agencies, space exploration can continue, while providing access to a platform that helps create jobs, build revenues, and create new products and services for people on Earth.

   20 Breakthroughs from 20 Years of Science aboard the ... - NASA

   www.nasa.gov/missions/station/20-breakthroughs-from-20-years-of-science-aboard-the-international-space-station/

   See all results for this question

9. physics.stackexchange.com › questions › 47893Why can't a spaceship accelerate for ever? Since there is no ...

   physics.stackexchange.com › questions › 47893

   There have been some proposals that try to work around this severe limitation, as the Bussard ramjet, and the laser light-sail proposed by Robert Forward: the first tries to use the hydrogen available in space as fuel, while the other captures a very powerful laser in a super-lightweight sail and accelerates by the momentum imparted by the light