There were 9 planets when I was in school. Today my son is studying that there are 8 planets in our solar system. It is really fascinating to travel the space and learn about the sun and planets. Today is dedicated to Neptune.
Escape velocity… Current and previous Science students must have heard this term. But others might not be aware of the same. Click the link and read about it because it would give you a proud feeling to know the importance of the day in history.