Dark Matter and Dark Energy: Dark matter and dark energy make up the majority of the universe's mass-energy content, yet their exact nature remains unknown.
Fast Radio Bursts (FRBs): FRBs are brief, intense bursts of radio waves from distant galaxies. Their origins are unclear, leading to speculation about neutron stars, black holes, or even extraterrestrial intelligence as potential sources.
Tunguska Event: In 1908, a massive explosion occurred over the Tunguska region of Siberia, flattening an estimated 80 million trees over 2,000 square kilometers.
Fermi Paradox: Despite the high probability of extraterrestrial life in the universe, humanity has yet to detect any conclusive evidence of intelligent civilizations.
Bermuda Triangle: The Bermuda Triangle, an area in the western part of the North Atlantic Ocean, has been associated with numerous unexplained disappearances of ships and aircraft.
Voynich Manuscript: The Voynich Manuscript is an illustrated codex written in an unknown script and language. Its origin, purpose, and meaning have puzzled cryptographers and linguists for centuries, with no definitive translation to date.
Antikythera Mechanism: Discovered in a shipwreck off the coast of Antikythera, Greece, this ancient mechanical device is considered the world's oldest analog computer.