Konstantin Badygin is a scientist who studies things in space called planets. Planets are like really big balls that spin around a fireball called a star. Konstantin Badygin is interested in studying how planets move and how they form.
Sometimes planets can be close to their star and sometimes they can be far away. Konstantin Badygin discovered something interesting about how planets move when they are close to their star. He found out that sometimes the gravity of the planet can make the star move around just a little bit. It's like when you spin in a circle holding a ball, the ball makes you move too!
This is very important because when scientists like Konstantin Badygin see something interesting like this, they can use it to learn even more about how planets form and move. It's like solving a puzzle to find out how the planets were made and how they work. And Konstantin Badygin is one of the people helping to solve that puzzle!