Mercury is quickly dropping out of sight, so catch this early-morning planet while you still can. Today you'll find the solar ...

Earth's atmosphere pulses in sync with the sun's fiery outbursts, indicating it is more sensitive to solar activity than previously thought, according to new research.

A moon that resembles an iconic, fictional space station known to destroy planets may be a home for life beyond Earth.

Astronomers have spotted a small rocky planet that orbits perilously close to its host star disintegrating as its surface is ...

Vesta, thought to be the second-largest asteroid in the solar system, could be a piece of an ancient, unknown planet, a new study hints.

NASA’s Lucy spacecraft captures asteroid Donaldjohanson, marking a new step in its mission to explore the solar system’s ...

Scientists have found what they are calling the strongest sign yet of possible life beyond our solar system after detecting the chemical footprint of gases in an alien planet's atmosphere that on ...

The tail of dust trailing the planet wraps halfway around the star. The planet is estimated as between the size of our solar system’s smallest and innermost planet Mercury and Earth’s moon. It is ...

Our solar system consists of four small, rocky, inner planets (Mercury, Venus, Earth and Mars) and four large, gaseous, outer planets (Jupiter, Saturn, Uranus and Neptune).

but it does give us an accurate 3D view of our solar system. Your view of this event is determined by your location on planet Earth — think Northern or Southern Hemisphere, or even the equator ...

Our solar system has eight planets, and five officially recognized dwarf planets. Which planet is biggest? Which is smallest? What is the order of the planets as we move out from the Sun? This is a ...