Video Junction

Towering nearly 22 kilometers above the Martian surface, Olympus Mons is the largest volcano known in the Solar System. It stands almost three times taller than Mount Everest and spans hundreds of kilometers across. Because Mars has lower gravity and lacks active tectonic plates, lava was able to accumulate in one location for millions of years, creating this colossal shield volcano. Its immense size is difficult to comprehend—if you stood on its slopes, the gentle incline and the planet's curvature would make it impossible to see the volcano's edge.

The human liver possesses an extraordinary ability that few organs can match: regeneration. When part of the liver is removed or damaged, specialized cells called hepatocytes rapidly multiply to restore lost tissue. In many cases, the organ can return close to its original size and function within weeks or months. This remarkable capability allows surgeons to perform partial liver transplants, where both donor and recipient livers can regrow. Despite this resilience, chronic disease and repeated injury can eventually overwhelm the liver's natural repair mechanisms.