Astronomers have discovered a new exoplanet that may be habitable 35 light-years from Earth. Named L 98-59 f, it joins four ...

The Solar System is a vast and mysterious realm, filled with planets, moons, asteroids, and icy bodies waiting to be ...

Dr. Luque said in a news briefing that the solar system is exceptional because, apart from our own sun, the star is the brightest known with so many planets around it.

A team of international scientists have uncovered compelling visual evidence for a massive, mysterious ninth planet hidden in the outer reaches of our solar system. R. Hurt/California Institute of ...

Scientists have captured the birth of a new solar system for the very first time. These incredible images reveal the exact moment when planets began to form around a star 1,300 light-years from ...

The long-theorized Planet 9, which astronomers have speculated could be a Neptune-sized planet that has been lurking on the outer edge of the solar system, could explain the unusual clustering and ...

Jupiter is our system's oldest planet, forming from the dust and gases left over after the Sun's formed 4.6 billion years ago.

Astronomers have discovered the earliest seeds of rocky planets forming in the gas around a baby sun-like star, providing a precious peek into the dawn of our own solar system.

There's a new object in the distant reaches of our solar system, and it might just offer clues to a long-standing cosmic mystery. Astronomers have cataloged a frozen minor planet called 2017 OF201 ...