Although there is no concrete evidence that Jupiter or Saturn formed from the merger of smaller gas giants, it is a possibility. Jupiter and Saturn have a higher fraction of heavy elements than the Sun, suggesting that one or both of them may have been formed by such a collision.

Will the Earth collide with Jupiter?

But at least we won't have to worry about colliding with Jupiter's core, because we'll never make it there. Our planet is too small and would burn up in the atmosphere before that ever happens. This would have a huge impact on Jupiter, as the Earth's remains would completely mix into its atmosphere.

What happens when Jupiter and Saturn touch each other?

– On the evening of the winter solstice, the planets of Jupiter and Saturn will appear so close to each other in the night sky that they will look like a “double planet” in the night sky. ... When this happens, it creates a “conjunction” in the sky, or a meeting of two objects in the night sky.