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This is a real danger that we can face if we are not properly protected against space objects that are on a collision course with Earth.

Astronomers have discovered that invisible structures generated by gravitational interactions in the Solar System have created a "Space Superhighway" network.

They are often portrayed on screen as little green men with elongated arms and legs and big eyes, but a renowned evolutionary biologist argues that extraterrestrials could be very similar to humans.

The first dimension is height, the second is width, the third is depth, and the fourth is time, but no one has yet been able to explain what is the fifth dimension.

Without our natural satellite, the planet's climate would be in chaos and life would disappear.

For more than a century, scientists around the world have tried to explain the phenomenon of the red-colored waterfall in Antarctica.

Drawings discovered in Peru would have been made more than 2000 years ago.

A forest that existed about 290 million years ago was found in Paraná, Brazil.