Phil wrote:

Is the Quasar still the furthest object known? If so how far from
Earth?

Some quasars are among the furthest discrete observable objects, but
space at similar distances is also populated by young galaxies.
Depending on how you define "object", though, the CMBR (cosmic
microwave background radiation) might count as the furthest, as it
represents the point in time when the universe became transparent to
radiation nearly fourteen billion years ago, therefore nearly
fourteen billion light-years away.

--
Odysseus