What is the smallest satellite ever launched in a group?

In one line

The rule

A satellite is any object that orbits around a planet or moon. Satellites can be natural (like the Moon) or artificial (made by humans).

Let's understand it simply

Imagine holding a tiny toy car in your hand. Now, imagine a satellite even smaller than that—about the size of a large coin or a small biscuit. These are called femtosatellites (very tiny satellites). Scientists make them so small that you could fit several in your pocket. They are sent into space together in groups, like a bunch of marbles thrown together.

How it works

1. Scientists build these tiny satellites using lightweight materials.
2. They attach sensors and a small battery so the satellite can collect data.
3. Many femtosatellites are packed together inside a bigger rocket.
4. The rocket is launched into space.
5. Once in space, the rocket releases the group of tiny satellites, which then orbit the Earth.

The story behind it

The idea of tiny satellites started because scientists wanted to make space research cheaper and easier. In 2017, Indian student Rifath Sharook built a satellite called KalamSat. It weighed only 64 grams—lighter than a cricket ball! It was launched by NASA as part of a group of small satellites.

Where you see it in real life

• KalamSat: The world's lightest satellite, built by an Indian student, launched in a group by NASA.
• CubeSats: Small, cube-shaped satellites (about the size of a Rubik’s cube) often launched in groups for research.
• Swarm satellites: Many tiny satellites sent together to study weather or space.
• Communication: Groups of small satellites help improve mobile networks and internet.
• Earth observation: Tiny satellites take pictures of farms, forests, and cities to help in planning.

Why it matters

• Makes space research cheaper, so more students and countries can take part.
• Small satellites can be launched in groups, saving money and time.
• They help in quick experiments—testing new ideas without big risk.
• Used in disaster warning, farming, and even tracking animals.

Common mistakes

• Thinking all satellites are big like a bus; some are smaller than your palm.
• Believing only big countries can launch satellites; students and small teams can too.
• Mixing up the word 'satellite' with 'planet'; satellites orbit planets, not the other way around.

Remember it

Even a satellite smaller than a biscuit can go to space if it is built smart and launched in a group!