Scientists have discovered two gigantic structures resembling soap bubbles in the middle of the Milky Way, above and below the galactic plane. How gigantic? 25,000 light-years tall, one quarter the size of our galaxy! They are not sure where they are coming from.
It never fails. Every month or so, the astronauts at the International Space Station capture Earth in the most amazing, astonishing, rock-your-socks-off way imaginable. Every time it's better than the previous one. This one is the current winner by far.