Hoba – The Earth’s Largest Meteorite

Hoba – The Earth’s Largest Meteorite

Have you ever wondered what is the biggest meteorite that have crashed to Earth? The answer is – Hoba. The meteorite hit the Earth about 80,000 years ago, but was only discovered in 1920 near Grootfontein – Namibia, by farmer Jacob Hermanu. While plowed one of his fields, he came across with a 66-ton piece of iron, nine feet long by nine feet wide and three feet thick. Despite its size, Hoba did not form a giant crater because scientists believe it has fallen at a small angle and has been greatly amused by the Earth’s atmosphere. Over the years,...
What is the Difference Between an Asteroid, a Meteor and a Meteorite?

What is the Difference Between an Asteroid, a Meteor and a Meteorite?

  The three are often mistaken – especially when two of them flew near the Earth in the same day, as happened about 10 days ago.Here you can find a short explanation. Asteroids are rocky objects in space smaller than planets. They’re sometimes called minor planets or planetoids, according to NASA It is believed to be the remains of the protoplanetary disk from which the planets in the Solar System are formed. Millions of asteroids circling in orbit around the Sun, about 750,000 of which in the asteroid belt between Mars and Jupiter. Some have even their own satellites. The meteor is...
It Turns Out That Our Moon Once Had an Atmosphere

It Turns Out That Our Moon Once Had an Atmosphere

A new study showed that the Moon had an atmosphere 3 to 4 billion years ago. It was formed when volcanic eruptions have shaken our companion and trowed out gases over its surface, as their speed was too high to be scattered in space. Now days, our Moon has no atmosphere because the magnetic field and the mass are not strong enough to hold it. Unlike the Earth, that keeps its atmosphere, any Moon’s atmosphere would be quickly taken away by the Solar Winds. But some time ago the situation was not like today, even if it was for astronomical...
The Sun

The Sun

For thousands of years people have been looking at the sky and wondering what those objects are all about. The glittering stars and the Sun have always hid a certain amount of mystery and beauty. For astronomers, the Sun is just a dying star. For everyone else, however, it is a huge burning ball that gives us light, warmth and life. So far so good. But what really burns our Sun? It is a well-known fact that there is no air in the cosmos. Accordingly, there is no oxygen to burn. Our everyday experience tells us that burning is a...
What is a Black Hole?

What is a Black Hole?

  A black hole is a region of space-time that can not be left from anything, even light. The general theory of relativity provides that a compact enough mass could distort space-time to such an extent that a black hole is formed. Around the black hole is formed mathematically determinable surface, called the event horizons, that marks the point at which the return is impossible. Want to learn more about it? Check out this great educational video of Kurzgesagt – In a Nutshell.  
Is it Different The Taste of Food in Space?

Is it Different The Taste of Food in Space?

  Canadian astronaut Chris Hadfield tells how our taste perceptions change when we get into zero gravity. When we get into space, the food really does not have the taste we’re used to. And the reason is not in the food itself, but in the way our body functions. It’s used to fighting gravity and pushing more blood to the head than it needs: “Your head kind of inflates as if somebody squeezes the end of a balloon,” says Hadfield. Without the gravity to draws the liquids down, the sinuses are clogged and you feel almost no taste. This goes...
Astronomy For Everyone

Astronomy For Everyone

Today, we are living in an unprecedented times in which every well-motivated resident of the World can do amazing things – for example, to search for exoplanets or to make other serious astronomical discoveries. Here are some websites that can be a starting point for every lover of Astronomy: http://www.worldwidetelescope.org The Worldwide Telescope (WWT) is exactly what its name implies. This multimedia application is a great illustration of the extent to which the World Wide Web has democratized science. WWT unites astronomical information from many sources, including some of the largest terrestrial (like Palomar in the US) or space telescopes...