Scientists have discovered a giant planet called TOI-6894b, orbiting a star that should be far too small to have formed it. The discovery could further challenge theories of planet formation.

It had not been thought possible that such tiny, weak stars could provide the conditions needed to form and host huge planets.

A recent astronomical discovery has shaken long-held beliefs about how planets form. For decades, scientists thought that stars much smaller than our Sun couldn't form giant planets. That theory just took a major hit.