Telescopes Rewrite Scientific 'Facts'

Advances in observational instruments and surveys (new telescopes, surveys, detectors) have repeatedly overturned long‑standing astronomy claims in the 21st century, from cosmic‑acceleration surprises to the prevalence of exoplanets and the demotion of Pluto. These reversals are not failures but demonstrations that empirical claims depend on measurement capability and interpretation, and they expose common misunderstandings about how science progresses. — Emphasizing that 'facts' are provisional in empirical fields reframes public expectations about science, guiding policy on funding, education, and how journalists should report scientific change.