Have you ever wondered what is behind the clouds?
How big is our universe? How long does it take to fly to the nearest star and how many stars are in our galaxy?
In a couple of decades, humanity will have a telescope capable of seeing signs of life on distant planets (near other star systems). And in 50 years, people will be able to send space probes to these planets. But unfortunately there is no technology yet to send a person there, the distances are too long, tens of light years. Maybe only in a few hundred years, people (or changed people) will be able to fly to their new home. Here are just a radio message to Earth will go for decades (at the speed of light).