A couple of months ago I wrote a post on the quickly growing number of known planets outside our own Solar System. For This Friday in This Blog's History I point you back to that post.
Growing List of Planets
At that time there were 3,607 confirmed planets outside our Solar System. I bet that number has grown since I wrote that post. Let's find out. Yep! As of June 1 (the latest update) there are 3,610 planets, an increase of 3 since I wrote that post. Astronomy...discovering whole new worlds...literally!