Big news this week. You may have seen the image. It looks like a hole. But it is 2.6 times larger than the actual object, and there is much more information contained in the image than a quick glance without much thinking reveals.
It is wonderfully explained here.
And the same channel produced a follow up video on the day of the announcement.
You might also be interested in the TED talk of the scientist who developed the algorithm that generated the image.