A light-year is a distance that the light travels in one year. So, if we read somewhere that a star is 4 light-years away, we know what it means right? It means that it will take 4 years for the light of that star to reach us.

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Stars are billion of kilometres away from each other. Yes, that sounds like an awesome distance. Isn’t it? Since the stars are so far away, it takes a huge amount out time for the light of the star to reach us. Depending on the distance of the star from the…

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A star is a huge ball made of hot gases. The main gas in a star Is hydrogen. Thy hydrogen atoms are constantly bumping into each other with so much force that it makes the hydrogen burn. This reaction produces lots of heat and light, which makes the stat shine…

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The stars are there in the sky both during the day and at night. During the day, the sun shines so brightly that we cannot see the other stars present in the sky. At night, when the Sun goes down and the sky is dark, the light of the stars…

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Actually, stars don’t twinkle at all. They only appear to twinkle. This is why it happens. The lights of the stars reach us by passing through the astomosphere of the Earth, which is made up of many layers of gases. These gases have different temperatures, pressures and several pockets of hot and cold air. When light passes through these gases, it gets slightly affected by these factors and bends a little from the ground, it appears that the stars are twinkling.

Oh, wait! It that way a coin on the floor of the swimming pool appears to be twincling and dancing? It seems the light just can’t stay in a straight line because of these distraction! Just like Robbu in school!

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Imagine the sky lit with various colours in so many patterns! First green, then pink, red, orange and then turning into violet! All changing one after the other on their own!

The Northern Light, also known as auroras, are lights that naturally occur in the sky. They create amazing displays…

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Remote controls are pretty amazing things. With just a press of a button, you can change the volume of the TV or turn on the AC. Hava you ever wondered what makes a remote control work?

Ok, let’s explore the TV remote. If you see carefully, you will find a little spot at the tip of your remote. Does it look like a fake eye or may be a plastic bead? Yes, you got it right! Have you notices how this little eye lights up when you press the buttons on your remote? So, when you press the remote buttons, this little eye sends a signal of light to the TV. Thought you cannot see this light but the sensors on Tv can catch it. So your TV now know what to do.

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