Astronomers have made a groundbreaking discovery that defies the conventional understanding of planetary formation in binary star systems. A planet orbiting in a retrograde direction—opposite to its ...

A Long March 6A lifts off from Taiyuan, Jan. 13, 2026, carrying the Yaogan-50 (01) satellite towards a highly retrograde orbit. Credit: CASC HELSINKI — China conducted a pair of Long March rocket ...

Artist’s impression of the nu Octantis system. Image generated by ChatGPT-4.0 and further modified by Trifon TRIFONOV using the GNU Image Manipulation Programme. Most stars in the Universe exist in ...

Add Yahoo as a preferred source to see more of our stories on Google. Here's what it means and what to know. Three to four times a year, the planet Mercury appears to travel backward across the sky — ...

A team of astronomers observed a confused exoplanet orbiting its two parent stars in a highly unusual way. As New Scientist reports, the planet, which was first discovered in 2004, is located in a ...

Through the looking glass: Astronomers have uncovered a planetary system that challenges long-held beliefs about where planets can exist. This discovery suggests the universe may hold far more ...

Mercury retrograde may be known to astrology lovers as a bringer of chaos — but an expert says it's not all bad. (Getty Images/NASA) Misunderstandings, travel disruptions, communication issues — these ...

Retrograde mean motion resonances occur when orbiting bodies, moving in directions opposite to the dominant sense of motion, experience periodic gravitational interactions that can stabilise their ...