Is there a massive undiscovered planet on the outer reaches of the solar system? The idea has been around since before the ...

New moons are the cardinal phase of the monthly lunar cycle, and they occur when the sun and moon meet at the same point in ...

NASA's New Horizons spacecraft made history by flying past Pluto, sending back groundbreaking data that would change our ...

The night sky is home to many celestial features named after creatures from Earth’s oceans. Among the stars, you’ll find ...

Astronomers have discovered the earliest seeds of planets forming around HOPS-315, a baby star located 1,300 light-years away ...

"It is possible that a planet once existed in the solar system but was later ejected, causing the unusual orbits we see today ...

The action is unfolding in a location comparable to the asteroid belt between Mars and Jupiter containing the leftover building blocks of our solar system’s planets.

In 2006, NASA launched New Horizons to explore Pluto. In 2019, it visited the furthest object in the Solar System we have ...

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

CAPE CANAVERAL, Fla. — 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 ...

The action is unfolding in a location comparable to the asteroid belt between Mars and Jupiter containing the leftover building blocks of our solar system’s planets.

At the far reaches of our Solar System lies Pluto, a mysterious world shrouded in shadows and icy terrain. NASA’s latest photos from this distant dwarf planet have provided us with ...