BepiColombo is slowly uncovering more and more fun facts about Mercury as it continues its preliminary mission. One of the ...

Late last July, a University astrophysicist helped discover the smallest planet ever detected outside the solar system — without even seeing it. Using a planet-finding technique called "gravitational ...

Mercury stands stationary at 3 A.M. EDT amid the stars of Cancer. The solar system’s smallest planet will now start sliding westward, or retrograde, appearing to “fall” back toward the Sun as it moves ...

Mercury, the smallest planet in the solar system, has spent billions of years quietly getting even smaller. Since its fiery beginnings 4.5 billion years ago, it has been steadily cooling and ...

TOI-6894 is now the smallest star known to host a transiting giant planet, with a radius 40% smaller than that of any previous such host. Prof. Jamila Chouquar, who was an astronomer at ULiege at the ...