The milky way is a huge galaxy with hundreds of billions of stars, and the sun is just one of the less prominent stars that, along with many other stars in the galaxy, orbits the centre of the galaxy.
Category:
Extraterrestrial
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This satellite is the communications satellite LES-1. In the 1960s and 1970s, the United States launched several such communications satellites, from LES-1 to LES-9, which were relatively small, weighing only about 32 kg, each with a horn antenna and an x-band transponder, as well as a 237 MHz signal transmitter, which were powered mainly by solar panels
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Extraterrestrial
How Long Does It Take For The Sun To Travel 792,000 Kilometres Per Hour And Make a Full Revolution Around The Centre Of The Milky Way Galaxy?
In the Milky Way, the closest stars to the Sun are 4.22 light years away
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Extraterrestrial
Would An Alien Civilisation Reveal Itself Voluntarily? 355 Light Years Away, An Abnormal Star Appears
Compared to radio messages sent by humans, this method seems to be more suitable for intelligent civilizations to announce their presence in the universe, because this method belongs to the "broadcast" in space, and intelligent civilizations in all directions can be observed
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The moon is the closest planet to the earth and the brightest and most easily observed object in the earth's night sky. Because the moon is always facing the same way towards the earth, for us humans living on earth, we can only ever observe one fixed side of the moon.
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Extraterrestrial
400 Million Kilometres Away, a Probe Captures a View Of a Martian Ravine, Bringing The Planet To Life
Nowadays, Mars is obviously unsuitable for direct human habitation, because the environment of Mars is very different from that of Earth, such as Mars is unusually arid, desolate and without a trace of life. Despite this, scientists are still keen to explore Mars
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Extraterrestrial
What Are The Seven Stars Of The Big Dipper? How Big Are They? How Far Away Are They From The Earth?
The Big Dipper is located in the constellation Ursa Major, and under good observing conditions, we can find them almost every day in the night sky of the Northern Hemisphere. These seven shining stars form a unique spoon shape that is very easy to recognize.
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Extraterrestrial
There Is a Mysterious Force That Controls The Workings Of The Universe And About Which Mankind Knows Almost Nothing
Further research shows that this mysterious force accounts for 68.3% of the total mass energy of the universe, and it is because of this that it is able to overcome gravity and become the dominant force controlling the operation of the universe
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Extraterrestrial
What Exactly Does The Sun Use As Fuel And How Has It Been Able To Burn For 4.6 Billion Years Without Going Out?
The sun, which we call the 'source of all things', has been sending light and heat to the earth for the past 4.6 billion years, which is why the earth is such a vibrant planet.What exactly does the sun use as fuel and how has it been able to burn for 4.6 billion years without going out?
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Extraterrestrial
Why Is It That The Discovery Of Extraterrestrial Life In Our Solar System Would Be The Beginning Of Despair For Humanity?
How exactly did such a complex life emerge on Earth? This is a great mystery to modern humans, but we are almost certain that the "birth of life" is a process that has a very small probability of occurring.