Scientists say that millions of years ago, a pair of hot, bright stars passed near our solar system. They didn’t crash into anything, and they never came close enough to affect Earth.
Still, the giant stars left a clear mark in thin clouds of…
Scientists say that millions of years ago, a pair of hot, bright stars passed near our solar system. They didn’t crash into anything, and they never came close enough to affect Earth.
Still, the giant stars left a clear mark in thin clouds of…