expedition

Comet

Comets fascinate the human mind since ancient people first noticed the white tail streaking through the night starry sky. We remember the date when the comet flies past the Earth once a century or even less often and remember all our lives. In the middle ages in Europe, the appearance of comets was often linked to various natural disasters and diseases. In religion, these heavenly bodies also play an important role. For example, in the New Testament, the comet heralded the birth of Christ.

Astronomers find comets also interesting and fascinating space objects, because they are witnesses of great historical events and even carry evidence of them.

The comet is a relatively small object in our solar system, usually having a diameter of several kilometers. Sometimes called “dirty snowballs” because of their component substances. Usually comets are composed of the following four elements:

Dust

Ice (water, ammonia, methane, carbon dioxide)

Some organic materials (e.g., resin)

Rocky ground (optional) Continue reading

The Solar system
In space you can find a lot of quaint places with abnormal high or low temperature. Or meet the largest meteorite, asteroid, the massive comet, the highest mountain, the Grand…

Continue reading →

The ashes of the discoverer of Pluto arrived on Pluto
Unlikely in 1930, when the world learned of the existence of Pluto, someone could believe that someday people will be able to find there their last resting place. However, this…

Continue reading →