When a star spins super fast, its magnetic field becomes enormously powerful. Imagine a ball of plasma moving at full speed. The rapid rotation causes...
The smallest planets or those with very low mass have insufficient gravity to retain an atmosphere. For gases to remain trapped around a celestial body, gravity must...
Ancient civilizations used calendars based on the Moon because its cycle is visible and regular. The complete lunar cycle lasts about 29.5 days, which is...
Ancient civilizations often worshipped the Sun because of its crucial role in agriculture. Without the Sun, there would be no photosynthesis, thus no plants, and...
Stars form in nebulae, which are gigantic clouds of gas and dust. The force of gravity pulls this material together, forming denser regions. Over time, these areas...
The pyramids, these imposing structures, also served as genuine astronomical observatories for the ancient Egyptians. They used their architectural precision to track the movements of...
X-rays are invisible forms of light. They have a very high energy. Their wavelength is short, which means they easily pass through a lot of...
Stars begin their life as giant clouds of gas and dust. Under the effect of gravity, these clouds contract to form protostars. When the temperature...
The light of the Moon can affect the visibility of stars in the night sky. In winter, nights are longer, the Moon rises later, and...
Sirius, also known as the Dog Star, is the brightest star in the night sky. The ancient Egyptians saw it in the constellation of the...
