A recent study in Icarus suggests a wandering star could disrupt our solar system. Simulations reveal that a star passing ...

Scientists analyzed famed astronomer Johannes Kepler’s 1607 sketches of sunspots to solve a mystery about the sun’s solar cycle that has persisted for centuries.

Could a rogue star disrupt our peaceful solar system? Scientists are keeping a close eye on the galactic neighborhood, and ...

Mercury doesn't give up its secrets easily. The smallest planet in our solar system is also one of the most extreme—a ...

Mercury is once again first in line to leave the Solar System, orbiting so close to the Sun makes it is the statistically closest planet to any other world in the Solar System.

Simulations show that the stars’ tug could send Mercury, Venus or Mars crashing into Earth — or let Jupiter eject our world from the solar system.

All seven of the other planets in our solar system are about to become visible at once in a great planetary ... Mercury, which is closest to the sun, takes about 88 Earth days to complete an ...

The Solar System also contains objects called comets. Comets are similar to asteroids, but are made of ice, dust and rocky material. As a comet approaches the Sun, it begins to vaporise , which ...