The National Aeronautics and Space Administration (NASA) celebrates 50 years of spacewalking, or Extravehicular Activity (EVA) with a slogan: “#SuitUp”. The United States government agency, which responsible for the civilian space program as well as aeronautics and aerospace research, will be celebrating accomplishments throughout the year 2015.
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The great white shark (scientific name: Carcharodon carcharias) is not the biggest shark (that title goes to the whale shark), but they are the largest predatory fish on Earth. According to the Guinness World Records Book, full grown adults are average 4.3–4.6 m (14–15 ft) in length, and generally weigh 520–770 kg (1,150-1,700 lb). But there are many claims of huge specimens up to 10 m (33 ft) in length. Newspapers and home photo albums are full of unconfirmed huge great white tales. And although few have been properly authenticated, there are a lot of circumstantial evidence to suggest that some great whites grow to more than 6 m (20 ft) in length. Here are some of the largest great white sharks ever recorded.
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The exact moment of the Calbuco Volcano eruption captured by a currently anonymous hiker in Chile. The volcano erupted on April 22, 2015, for the first time in four decades (the last one was in 1972).
Continue reading The Exact Moment of the Calbuco Volcano Eruption captured by a hiker
The world’s deepest lake is the Lake Baikal, which has a depth of 1,642 meters (5,387 feet). It is a rift lake in the south of the Russian region of Siberia. It’s bottom is at 4,215 feet (1,285 meters) below the sea level. In terms of volume, Lake Baikal is also the world’s largest freshwater lake; it contains roughly 20% of the world’s unfrozen surface fresh water with 23,615.39 cubic kilometers (5,700 cubic miles). It contains more water than that of all the Great Lakes combined.
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When I was a child, I always dreamed about watching Earth from the space. Back in the 1980s, we were almost sure that around year 2000, the space travel would be so common. Remember TV shows like “Space: 1999”. Unfortunately, the space race lost its momentum during the 1990s and 2000s.
Continue reading Live HD streaming Of Earth (From The ISS – International Space Station)
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
The standard maps we see every day use Mercator Projection, a cylindrical map projection presented by the Flemish geographer and cartographer Gerardus Mercator in 1569. It developed for navigational purposes, has often been used in world maps. And like all other type of projections, it can be deceptive.
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What if Earth had rings like Saturn? What it would look like? Probably, our sky would look amazing. The rings would look quite different from the cities and latitudes across the world. It’s interesting to imagine how it would effect culture throughout time. It would have influenced religion, mythology, navigation, etc.
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In fact, we’re all living in a fast-moving spacecraft named Earth. Our planet is moving around our sun in an elliptical (an ellipse which is very close to a circle) orbit. The Sun is (our solar system, the Sun, Earth and all the other planets and objects) whirls around the center of our galaxy. And, our galaxy and the other galaxies in our neighborhood are also rushing towards a structure called the Great Attractor, a region of space roughly 150 million light-years (one light year is about six trillion miles) away from us. This Great Attractor, having a mass 100 quadrillion times greater than our sun and span of 500 million light-years, is made of both the visible matter that we can see along with the so-called dark matter that we cannot see.
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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.
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