(CNN) -- Ever feel like you live in a bubble?
You do. We all do.
Our whole solar system appears to, say space scientists, who published work last month corroborating its existence.
And, oh, what a bubble it is: About 300 light years long (about 1,764,000,000,000,000 miles), and its walls are made of hot gas. How hot? About a million degrees.
It's called the "Local Bubble" or "local hot bubble" and is shaped a little like a peanut.
Scientists believe it was formed by supernovas, the largest explosions in space, as NASA calls them, that occur when a large star blows up.
One supernova blasts out more energy in less than a second than our sun gives off in a million years, NASA says. A single explosion can outshine an entire galaxy.
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