Earth will have a visitor within its orbit for the next several decades, according to astronomers. An asteroid named 2025 PN7 has become a "quasi-moon" to Earth, as it will be sharing an orbit with ...

Some planets in our solar system have an incredible amount of moons. Jupiter has 95, with names like Ganymede and Europa. Remarkably, though, Saturn has almost three times that number, including the ...

The recently spotted asteroid 2025 PN7 appears to be the source of the rumor mill about Earth's supposed second moon. Earth has several quasi-moons that get their name due to the fact that they ...

Rogue moons drifting through space may host long-lived oceans for up to 4.3 billion years, expanding where scientists search ...

Ruined structures -- Rocks in a stream -- Systems inside systems -- Strange places and small things -- Pebbles and giant impacts -- The last ones standing -- A billion earths Summary An astonishing ...