Space.com: NASA, Space Exploration and Astronomy News
WEB1 day ago · Get the latest space exploration, innovation and astronomy news. Space.com celebrates humanity's ongoing expansion across the final frontier.
How rockets work: A complete guide | Space
WEBJun 30, 2021 · The key to using rockets in space is to carry a chemical called an oxidant that can perform the same role as oxygen in Earth's air and enable the fuel to combust. The Space Shuttle’s unique ...
Solar system planets, order and formation — a guide | Space
WEBAug 27, 2024 · Additional resources. The order of the planets in the solar system, starting nearest the sun and working outward is the following: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and ...
What is the Big Bang Theory? | Space
WEBJul 26, 2023 · Hubble images show the far-distant galaxy GN-z11 as it appeared shortly after the Big Bang. (Image credit: NASA) This all happened within just the first second after the universe began, when the ...
Heliocentrism: Definition, origin and model | Space
WEBApr 8, 2022 · Bibliography. Following the theory of heliocentrism, today we know that Earth, and the other planets of the solar system, are all in orbit around the sun. However, it was once believed that Earth ...
Why is the sky blue? - Space.com
WEBAug 25, 2022 · The answer lies in the physics of when sunlight passes through the atmosphere. The light rays are scattered in all directions as they hit the air molecules, and light at the blue end of the ...
Milky Way galaxy: Facts about our cosmic neighborhood | Space
WEBApr 18, 2023 · The Milky Way is a barred spiral galaxy around 13.6 billion years old with large pivoting arms stretching out across the cosmos. Milky Way quick facts: – Galaxy type: Barred spiral – Age: 13.6 ...
Why is the speed of light the way it is? | Space
WEBJul 16, 2020 · Putting light to the test. The first person to realize that light does indeed have a speed at all was an astronomer by the name of Ole Romer. In the late 1600s, he was obsessed with some strange ...
The four fundamental forces of nature - Space.com
WEBDec 23, 2021 · From playing basketball, to launching a rocket into space, to sticking a magnet on your refrigerator - all the forces that all of us experience every day can be whittled down to a critical quartet ...
How big is Earth? | Space
WEBJul 6, 2021 · The volume of Earth is 260 billion cubic miles (1.086 trillion cubic kilometers), while its mass is 6.6 x 10 21 tons (6 x 10 21 metric tons), according to NASA. With these values known, and Earth ...
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