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The young electrical engineering student disappeared after claiming to create a time machine.

An impressive report of an encounter with a Giant coming out of the waters of the São Francisco River.

Sound is a powerful force that can be felt not only audibly but also physically, so it can evoke physical responses and alter the environment around us.

The earliest known astronomical observatory in the Americas was built by an unknown culture, long before the Incas rose to power in Peru and began to celebrate their Sun God.

Scientists have come up with 12 hypotheses why we haven't detected signs of alien civilizations yet.

Researchers have developed a simulator that can feed information directly into a person's brain and teach them new skills in a short period of time, like in the classic science fiction movie "The Matrix."

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.