Scientists examined microscopic fossils in the tombstone and suggest the jet-black slab with an English knight’s insignia could have come only from one place.
Astronomers have spotted a massive pair of jets releasing material from a distant black hole. The jets are so large they span about 140 Milky Way galaxies in length.
Jet, a flat-black, opaque gemstone derived from wood that has experienced extreme compression over millions of years, was the haute stone throughout the Victorian era, a time when fashion and ...