Learn about different types of satellite orbits around the Earth and their use. These include geostationary, polar, elliptical low and medium earth orbits.

Learn the meaning and definition of an orbit. We also discuss why in space objects keep revolving around other stars and planets; and the concept of barycenter.

Learn interesting facts about our star the Sun. We discuss, sun’s structure, size, temperature, age, energy, sunlight, composition and its future.

Know interesting facts about solar system and planets. How old and how big is the solar system, what it is made of and properties of objects revolving inside it.

Let’s know interesting facts on sunlight and its components, how visible white light consists seven colors and wavelengths infrared and ultraviolet rays.

Autistic Pride Day is celebrated on 18 June all around the world. Let’s learn about the history, significance and quotes of the observance by the people with autism.

The Sustainable Gastronomy Day is a UN recognized international day observed on 18 June. We explain the meaning of sustainable gastronomy and the theme and significance of this day.

Learn about what is an earthquake and why do earthquakes occur. Prediction of an earthquake is not possible as yet and that makes this natural disaster a very dangerous event.

Learn about the World Oceans Day 2020. We discuss its theme, history, background, significance and quotes related to the importance of oceans in our lives.

World Environment Day is celebrated on 05 June every year. Let’s learn about the theme, history and importance of this international day along with some great quotes on environment.

How many states are there in India? Which states were there in the British India before independence? Which states were there when India got independence? Let’s find out!

Have you ever counted how many countries are there in the world? Well, you need not counting, let us answer that there are a total of 195 countries.

Have you ever thought what is the blackest thing in the world? Let’s introduce you to the quest for perfect black through Vantablack, Black hole and MIT’s black.

Learn interesting facts about the United Nations (UN). These facts cover the UN’s history, founder members, headquarters, work of the UN and much more!

HIV AIDS is among the most serious health issues our planet it facing. This viral disease still doesn’t have any cure and it still infects hundreds of thousands people every year. Let’s learn more about HIV AIDS.

Learn about the History of the United Nations and its Founder Members. We also explain the purpose and role of the UN in this article.

Here is the full list of United Nations International Years declared so far. These years observe focus on a specific subjects to enhance awareness and action.

Learn the facts about desert locust that fly in swarms and act as a plague to destroy crops and other vegetation. A solitary locust transforms into gregarious and forms a swarm.

Which is the longest river in the world? Is it African river Nile or Latin American Amazon or Chinese Yangtze? Let’s learn about the longest rivers that flow on our planet earth.

Learn about the longest rivers in India. Ganges is the longest Indian river but some people think the honor goes to Brahmaputra or Indus. Let’s know the facts!

Learn about the International Museum Day celebrated on 18 May and its theme, history, significance and related quotes.