SCP 06F6 is an astronomical object discovered in February 2006 by the Hubble Space Telescope in constellation Boötes that brightened and faded over 100 days with an unusual spectrum matching no known phenomenon. Its extreme luminosity, atypical light spectrum, and rapid variability have led astronomers to propose it represents a new class of celestial object, possibly a pair-instability supernova or the result of exotic stellar collisions.
Astronomers using the James Webb Space Telescope have discovered mysterious bright objects called 'little red dots' from the early universe. Initially thought to be galaxies, they now appear to be either supermassive black holes or a newly proposed phenomenon called black hole stars—objects combining massive stars with black holes at their cores. The discovery has sparked intense debate in the astronomical community.