Twenty-eight youngsters experienced a full day of learning about the solar system, outer space, the planets, stars and ...

Stars passing close to the sun could cause planets to collide, including with Earth, or even be ejected as rogue planets, new simulations show.

Mars appears low in the western sky for an hour or two after sunset throughout July. Spotting it will be easier with ...

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A possible cousin of Pluto seems to be circling the far reaches of the solar system. The dwarf planet candidate 2017 OF201 travels in a superwide orbit, with the sun relatively near one end of its ...

In short, dynamical studies of the solar system have generally failed to consider the influence that passing field stars will have on the solar planets over time.

Are planets in the solar system that are closer to the Sun older than the ones further away? – Gavriel, age 10, Paducah, Kentucky A cloud of collapsing gas created our Sun, the first thing to form in ...

Scientists have identified an object about 435 miles (700 km) wide inhabiting the frigid outer reaches of our solar system that might qualify as a dwarf planet, spotting it as it travels on a ...

Recently, scientists have made an exciting discovery: 11 Earth-like planets located just outside our solar system. These celestial bodies, which share many characteristics with Earth, are sparking ...

This article was originally featured on The Conversation. Are planets in the solar system that are closer to the Sun older than the ones further away? – Gavriel, age 10, Paducah, Kentucky A ...

This process, called accretion, is how everything in the solar system – planets, moons, comets and asteroids – came into being. Article continues below this ad The ice line ...

This process, , is how everything in the solar system – planets, moons, comets and asteroids – came into being. Telescopes can see young solar systems being born.