One image tracks the same cosmic object across space and time. It's all down to a strange quirk of physics | BBC Sky at Night Magazine Light from little red dot RX1 is split into four images. Between the youngest and oldest image is about 130 years.

The hottest topic in #astronomy is what exactly the little red dots (#LRDs) hiding in #JWST images really are.
#RXCJ22110350 #GravitationalLensing #Science #Space #EinsteinCross www.skyatnightmagazine.com/news/rxc-j22...