The fourth planet in the system is a rocky world, while the second and third ones are gas planets.

Of the thousands of single-star systems in our galaxy, around 10% are known to have planets. Scientists thus expected about ...

For decades, scientists have searched the skies for signs of extraterrestrial technology. A study from EPFL asks a sharp question: if alien signals have already reached Earth without us noticing, what ...

“It would depend on many factors, including the true planet masses, dynamical interactions among planets, and presence/absence of outer (additional) planets in the system. Our latest calculation still ...