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Space News - Latest Space and Astronomy News | Space
2 天之前 · 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
Solar system planets, order and formation — a guide | Space
2024年8月27日 · 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, …
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 …
How rockets work: A complete guide | Space
2021年6月30日 · 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 …
Comets: Everything you need to know | Space
2023年7月31日 · Comets are defined as icy bodies of frozen gases, rocks and dust left over from the formation of the solar system about 4.6 billion years ago. They orbit the sun in highly …
Starlink satellite train — how to see and track it | Space
2024年7月24日 · The Starlink satellite train is usually visible shortly after the satellites have been deployed when they are at their lowest orbit. Starlink satellites travel very fast and complete …
What is a Nebula? Nebula: Definition, Location and Variants | Space
2024年6月17日 · A nebula is a giant cloud of gas and dust located in the space between stars. Nebula is Latin for "mist, vapor, fog, smoke, exhalation," but in an astronomical context, it …
Milky Way galaxy: Facts about our cosmic neighborhood | Space
2023年4月18日 · Milky Way quick facts: – Galaxy type: Barred spiral – Age: 13.6 billion years (and counting) – Size: 100,000 light-years across – Number of stars: about 200 billion – …
International Space Station — Everything you need to know | Space
2024年2月23日 · The International Space Station is 356 feet (109 meters) end-to-end with a mass of 925,335 pounds (419,725 kilograms) without visiting vehicles. The solar panels alone cover …