Einstein rings are some of the coolest things in space. They are not actual objects in and of themselves, but rather are distortions of space caused by gravity. Apparently, scientists are now using this phenomenon to measure distant black holes. http://earthsky.org/space/einstein-ring-helps-weigh-a-black-hole
A few days ago we heard from Nasa that liquid water still exists on the surface of Mars. 3 billion years ago, ancient lakes existed where Gale Crater is today. I find all this stuff fascinating. You can read more about it here: http://www.sciencealert.com/ancient-lakes-existed-on-mars-3-billion-years-ago-nasa-reveals
As fun as it was to speculate about the source of the bright lights on Ceres, Nasa now believes they were merely patches of salt. It's highly likely that intelligent life exists somewhere other than Earth, but probably not on Ceres.
On of my favorite science fiction themed websites is actually firmly grounded in science fact. It's futuretimeline.net, and it makes predictions about where humanity will find itself in the coming years based upon our current understanding of the rate of scientific advancement. Of course, the further into the future one gets, the more fiction one is likely to encounter. In any case, here's a link to the Website if you'd like to get lost for a few hours: