We’ve already had one Mercury retrograde so far in 2025, and we're set to have two more before the year is out. Keep reading ...

The lone planet confirmed to be in the system is squeezed in between the two, orbiting at a distance similar to Earth's ...

A planet twice the size of Jupiter has been confirmed in Nu Octantis. Its retrograde orbit and origin raise new questions about planetary formation in binary systems.

Scientists suggest a star and its planet are orbiting a second star in two opposite directions in an exotic binary star ...

After two decades of debate, research confirms that an odd binary star system has an equally odd planetary companion ...

Astronomers have discovered a remarkable planetary system that challenges long-held assumptions about where planets can ...

Mercury retrograde: Several planets appear to 'step back,' and here's what that means. The planets that fall inside Earth's orbit around the Sun – Mercury and Venus – mostly appear to be ...

The system ʋ Octantis (pronounced nu Octantis) should be hostile to planets. It contains a sub-giant star 57 percent heavier than our Sun and a white dwarf about 43 percent lighter.

The new planet's orbit is also unique in its "retrograde" orientation. Unlike the Earth and other planets in the solar system, which orbit in the same direction as the sun spins, the new planet ...