When stars explode as supernova, they carve giant bubbles in space. Our own solar system is enveloped by such a structure from a long-ago explosion.
Now scientists have shown that our bubble is being pinched and bullied backward by another expanding bubble forged from multiple supernovas.
They use a lot of words like "superheated" and "hot expanding gas", which sorta makes it sound like what happens around my house after Olivia eats some chili. Something tells me, though, it's a bit different than that.