Question

how many year back ?star in our galaxy exploaded​

Answer 1

Answer:

Of course, we do not really know why such a catastrophic event occurred. The galaxy in question is 10 million light years distant from our own Milky Way and the astronomer's interpretation of the photographs is that 11½ million years ago, nearly 6 million suns in the central regions of the galaxy exploded.

Answer 2

Answer:

Of course, we do not really know why such a catastrophic event occurred. The galaxy in question is 10 million light years distant from our own Milky Way and the astronomer's interpretation of the photographs is that 11½ million years ago, nearly 6 million suns in the central regions of the galaxy exploded.