Astronomers aren't certain V838 Monocerotis is actually a red nova, but ever since 2002, the Hubble Space Telescope has ... he said in the teaser video for "Luminous", adding that there's only ...

This event is only the second time such a luminous outburst has been observed ... The system responsible for this nova, named CXOU J005245.0–722844, is one of only seven known Be/White Dwarf ...