The formation of the Earth-Moon-Sun system dates back billions of years. According to a widely accepted theory, the Moon was created after an object the...
The shepherd's star is named after the specific period of the year during which it shines most intensely in the sky. In fact, this star, also known...
Shooting stars, also called meteors, are small fragments of rock or dust from space that enter the Earth's atmosphere at high speed. When these space...
The blue color of the sky is due to the Rayleigh scattering phenomenon, which occurs when air molecules scatter sunlight. Nitrogen and oxygen molecules in...
The tilt of Earth's rotation axis is a key element explaining the phenomenon of seasons on our planet. The Earth's rotation axis is tilted relative...
The formation of black holes occurs when a massive star reaches the end of its life. When a very massive star, several times larger than...
The stars were vital for ancient Mediterranean civilizations because of their ability to provide essential time references for agriculture, navigation, and daily life. The movements...
Stars can vary in brightness due to their rotation on themselves. This phenomenon is observed when certain parts of the star's surface are brighter than...
Variable stars change in brightness due to their internal instability. These stars experience intense internal agitation. Their gas constantly contracts and expands. This phenomenon is...
The Greek astronomer Eratosthenes estimated the circumference of the Earth in the 3rd century BCE. He used a simple yet ingenious method by observing the...
