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.
Continue reading NASA celebrates the 50th Year of Spacewalking
The announcement from NASA:
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. Its 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 North American Great Lakes combined.
Continue reading The deepest lake in the World: Lake Baikal
When I was a child, I always dreamed about watching Earth from the space. Back in the 1980s, we were almost sure that around the 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)
But thanks to the Internet and computer science, we all able to see the earth from the space. And live! And HD! 24 hours a day (the feed will sometimes go down as the signal switches between the cameras – the screen is grey when the cameras are down)!
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 a mountainous area in the south of Chile.
The amazing footage from the area shows a huge column of lava and ash being sent several kilometers into the air.
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 the other types of projections, it can be deceptive.
Continue reading Maps can be deceptive
In fact, every map tells lie, since it’s impossible to transform perfectly the three-dimensional world into two-dimensional surfaces like paper or computer screen. Map projections are necessary for creating maps and every map projections distort the surface in some fashion (a map projection is a systematic transformation of the latitudes and longitudes of locations on the surface of a sphere or an ellipsoid into locations on a plane).
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 affect the culture throughout time. It would have influenced religion, mythology, navigation, etc.
Continue reading If Earth Had Rings Like Saturn, What it Would Look Like
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.
Continue reading Earth: a fast-moving Spacecraft
So, even when you’re resting on your armchair, you’re flying through space faster than the fastest human-made object. But how fast actually?
Our planet is constantly changing over the years. Some changes are the part of 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
Ligers are the largest cats on Earth. A liger can be more than 900 pounds (~408 kg) in weight and 12 feet (~3.65 m) long, weighing almost 100 times more than house cats and almost twice as much as either Panthera tigris (tiger) or Panthera leo (lion).
The liger, the largest of all known extant felines, is a hybrid cross between a male lion and a female tiger.
Continue reading World’s Largest Living Cat: Hercules, the liger (video)