Galaxy and Planet

Do you know what is the horizon?

The horizon or skyline is the apparent line that separates earth from sky, the line that divides all visible directions into two categories: those that intersect the Earth’s surface, and those that do not. What is the [ … ]

Venus, the second planet from the sun

Venus is the second planet from the Sun, orbiting it every 224.7 Earth days. What is Venus? Venus is the second planet from the Sun, orbiting it every 224.7 Earth days. It has the longest rotation period (243 days) of any planet in the Solar System and [ … ]