On an evening in the not too distant future, the night sky may be filled with shooting stars made by human hands.

Natural meteor showers occur when Earth plows through trails of debris shed by passing comets. When this celestial schmutz slams into our atmosphere at breakneck speeds, the debris burns up and creates fiery streaks of light.

Now, if a Japanese start-up called ALE has its way, a satellite capable of generating artificial meteor showers will be in orbit sometime in the next two years. From 314 miles (500 kilometers) above Earth’s surface, the orbiter will shoot metal spheres the size of blueberries into the upper atmosphere.

As these particles move across the sky at roughly 17,400 miles (28,000 kilometers) an