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James Webb Space Telescope discovers what remains after two stars collide and explode as a red nova

"Until now, it was unknown what type of star would remain after the merger." ...
Techno-Science.net on MSN

Luminous red novas: A star merger seen in real time

When two stars collide, their impact can give rise to a brilliant explosion known as a luminous red nova. To determine what stellar object remains after such a merger, astronomers used the James ...