Astronomers' have discovered a dangerous denser cloud of interstellar gas, that is moving in our direction. The stellar winds of young stars in the star forming region near the Aguila Rift, are pushing the cloud of gas in our direction. It will reach the heliosphere in 50.000 years. Some wisps of gas can already arrive earlier. These clouds can suppress the solar wind.
Interstellar material can enter the solar system and perturb the sun and life on the Earth.
For the moment we cannot detect these wisps of gas when they arrive. Now we are leaving the protective cocoon of our solar system. Recent studies are showing that there has been a supernova explosion, some 4 million years ago. The explosion has made a bubble in the interstellar gas. The Sun and other familiar stars lie in that bubble.