The Calbuco volcano in southern Chile has erupted twice and the people have been evacuated. It is the first eruption of the stratovolcano in 42 years; results in huge ash cloud over mountainous area in south of Chile.
Continue reading Calbuco volcano (Chile) erupts – amazing video
Our planet is constantly changing over the years. Some changes are the part of the nature, and some of them are on humanity’s shoulders. Over the years astronauts have taken photos of the Earth and documented these changes. NASA’s World of Change series shows how our planet’s land, oceans, atmosphere, and Sun are changing over time.
Continue reading Changing Earth
The age of the Earth is approximately 4.54 billion years. For all these years, our planet has been a work in progress: water, wind, air pressure, minerals, heat, and even extraterrestrial forces like meteors and comets mold and shape our environment, and created all manner of strange formations. Some of them are really beautiful: we call them “Natural wonders”. Some natural wonders are really famous, for example the Grand Canyon or Victoria Falls. Some of them are lesser known, yet still stunning. Here are the 10 lesser known natural wonders of the World.
Continue reading 10 Lesser Known Natural Wonders (I)
In August 26-27, 1883, a small island in the Indian Ocean obliterated itself in one the most notorious volcanic eruptions in history. Krakatau (often spelled Krakatoa) erupted with such violence that two-thirds of the island, about 23 square kilometers, sank into the Sunda Strait. The explosions heard in the 1883 eruption remain the loudest noise on human record. The sound was heard across the Indian Ocean, as far away as Rodriguez Island, 4,653 kilometers (2,890 miles) to the west, and Australia, 3,450 kilometers (2,144 miles) to the east. The massive eruption also generated a series of tsunamis, which produced waves as high as 30 meters tall.
Continue reading Krakatoa, from space
The “Seven Wonders of the World”, also known as the “Seven Wonders of the Ancient World”, describes seven great constructions known in the Hellenistic periodNotes 1. None of them but the Great Pyramid of Giza (Kheops Pyramid) do not exist today.
Continue reading Seven Wonders of the World