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Space News - Latest Space and Astronomy News | Space
1 天前 · Space.com is your source for the latest astronomy news and space discoveries, live coverage of space flights and the science of space travel. | Space
What is interstellar space and where does it begin? | Space
2023年1月17日 · Interstellar space is the area between the stars, but it is far from empty. It contains vast quantities of neutrinos, charged particles, atoms, molecules, dark matter and photons ranging from the ...
What is the Big Bang Theory? | Space
2023年7月26日 · 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 ...
Why is the sky blue? - Space.com
2022年8月25日 · The sky isn't always blue. When the sun is low in the sky, at sunrise or sunset, it can take on a red hue. This is explained by the same physics — Rayleigh scattering — as the blueness of the ...
When is the Winter Solstice and what happens? | Space
2024年1月17日 · The Earth in its orbit around the sun during the solstices. During the December Solstice, the Northern Hemisphere points away from the sun, the Southern Hemisphere towards it.
Earth's magnetic field: Explained | Space
2022年7月6日 · Earth has two sets of poles, geographic pole and magnetic poles. Earth's magnetic field can be visualized if you imagine a large bar magnet inside our planet, roughly aligned with Earth's axis.
Does the sun rotate? Science of solar rotation | Space
2022年7月26日 · The sun (right) is orbited by the planets of the solar system. (Image credit: ANDRZEJ WOJCICKI/SCIENCE PHOTO LIBRARY via Getty Images.) Differences in rotation rates on our star aren't isolated to ...
Redshift and blueshift: What do they mean? | Space
2023年4月24日 · To understand redshift and blueshift, first, you need to remember that visible light is a spectrum of color each with a different wavelength. According to NASA, violet has the shortest wavelength ...
How rockets work: A complete guide | Space
2021年6月30日 · Fortunately, a device that solved the problem of generating force without a surrounding medium had already been invented — the rocket. Initially used as weapons of war or in fireworks, rockets ...