This one threw me for a loop when I heard about it, so I thought I'd pass it along as one of those weird, and literally strange, but true things. Based on data from Chandra, the X-ray space telescope (I still think of it as AXAF), some of my collegues have found than an object called RX J1856 is too small to be a neutron star. The equations of state for quarks permit this to be an object made up of "raw" quarks. Quarks come with different characteristics, and wouldn't you know, the equations of state indicate that these would be "strange" quarks.
This is not totally confirmed yet, but the data looks pretty good. And if not here, one could be found elsewhere soon.
So if anyone asks you about "strange" "quark"
stars, yes, it's possible, and probably even true.