Astronomical Mysteries Summary
Here is a quick summary-page for the posts in the mysteries series:
Admittedly this is, what, 18 months late? But never mind that!
Here’s a list of the previous posts:
#4: What is KOI-74b? – Note that this has been subsequently solved! It was indeed a small white dwarf.
#1: Is the Sun binary? – since I wrote this, we’ve had nearly a year of the WISE survey, and no-one’s pulled a solar companion out of it yet. However, there is still 43% of sky-coverage yet to be released (not that it’s likely one will be found, but you never know).