or log in
The orbits of the 8 planets in our Solar System are elliptical.
When the Sun, Earth, and the Moon are arranged in a straight line, the Moon can partially...
The formation of the Sun and the planets started with the contraction of a dust cloud...
The evaporation of seawater provides an excellent opportunity for coastal countries to produce salt.
Flooding rivers can cause numerous environmental issues. Let's see how we can protect ourselves...
This animation demonstrates the process of star development for average and massive stars.
This animation demonstrates the geographical regions of Hungary.
This animation demonstrates the most important seas and bays.