Just now, somewhere in the universe, a star exploded.
There goes another one.
In fact, a supernova occurs every second or so in the observable universe,
and there is one on average every 25 to 50 year
分类目录归档:supernova
Just now, somewhere in the universe, a star exploded.
There goes another one.
In fact, a supernova occurs every second or so in the observable universe,
and there is one on average every 25 to 50 year