Huge dark swaths…
Is THAT normal?
Still don't think I've seen such massive irregularities before.
how does a solar observatory differ from a telescope with a filter?
Why would they close and evacuate them.
This could be big
Still don't think I've seen such massive irregularities before.
how does a solar observatory differ from a telescope with a filter?
Why would they close and evacuate them.
This could be big