In our solar system, there are 2 planets in the habitable zone of the solar system, one of which is our home planet Earth, and the other is Mars
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"earth"
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Earth
Scientists Open 5.5 Million-Year-Old Cave, Discover 'Alien World', Overturning The Perception Of Life
In this 5.5 million-year-old cave, not only is there no sunlight, but the environment is also very harsh
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Extraterrestrial
Another Potentially Habitable Planet Has Been Discovered, And The Only Thing Scientists Are Worried About Is The Possibility Of Alien Life
This exoplanet, known as TOI 700d, is about 101.5 light years away from our Earth, which means that even if we were to travel to this exoplanet in a light-speed spacecraft, it would take at least 101.5 years of flight to reach it, so it is very far away
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Science
How Terrible Is The Strongest Known 'Starquake'? It's The Equivalent Of a 21 Magnitude Earthquake And Would Be Too Much For Earth To Handle
Earthquakes are a natural phenomenon known to all of us, and they are not unique to the earth. In theory, any planet with a solid crust can have an 'earthquake', and for the sake of distinction, we can call it a 'starquake'. The strength of a 'starshock' varies from planet to planet, so how terrible is the strongest known 'starshock'?
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The climate patterns on Earth will then become chaotic, and humans will lose the ability to control and drive the Earth's climate to remain stable and conducive to the habitability of humans and the Earth's biosphere as a whole
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Earth
What's Going On? Spiraling Object Appears In New Zealand Night Sky And a Series Of Fireballs Streak Across The Spanish Night Sky
In general, when a spacecraft, probe or rocket wreckage re-enters the atmosphere, they are fast, reaching several kilometers per second or even faster
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Extraterrestrial
18.8 Billion Kilometres Away, Seven Months Out Of Control, Voyager 2 Sends a Message To Earth: Hello
It's good news that Earth has regained contact with Voyager 2 after such a long period of loss of control. But somewhat sadly, Voyager 2 is carrying very little battery power left
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Science
The Earth Has Mountains Over 8,000 Metres High And Ocean Trenches Over 10,000 Metres Deep, So Why Do Scientists Still Say The Earth Is Round
There is a view that the reason why the Earth looks round is because of the role of the Earth's oceans, which simply means that a large amount of seawater has "filled in" the undulations of the Earth's surface.
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Earth
The Earth Has Been Spinning For 4.5 Billion Years - Where Does The Energy Come From? Scientists Finally Have The Answer
The earth has been spinning since its inception and has been doing so for 4.5 billion years now, so why has it not stopped yet?
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Extraterrestrial
What Is So Special About Gliese 581g, Thought To Be The Most Earth-Like Exoplanet Known?
It has been billions of years since life appeared on earth, and although there are seven planets in our solar system in addition to earth, as well as a number of dwarf planets, moons and other relatively large bodies, so far we have not found alien life on any other planet in our solar system for the time being. Even mars, another earth-like planet in the habitable zone of our solar system, has not found a single sign of life. Could it be that life on earth is really unique and no other planet is allowed to have life?