Astronomers find exoplanet orbiting in opposite direction of its star

Astronomers have discovered an exoplanet, GJ 3090 b, that orbits in the opposite direction to the rotation of its parent star. Located about 73 light-years from Earth, it has a highly misaligned orbit, a radius 2.2 times that of Earth and a mass 4.5 times that of Earth, making it a sub-Neptune. The research was published in Astronomy & Astrophysics.