The solar system is vast, but how big is it really? In this video, we break down the scale of our solar system by starting with the Sun and comparing it to everyday objects.

Pluto likely acquired large moon Charon in a “kiss and capture” collision billions of years ago. It may have created a subsurface ocean on the icy dwarf planet.

Delving into the behaviors of the Sun and protecting humans at home and beyond are top priorities, according to the National Academies.

The odd atmosphere of a fledgling exoplanet is causing astronomers to question leading theories of how planets form.

Everyone knows about the Solar System, and the planets that make it up. They’re in space, orbiting the Sun, in an order we all at least used to be able to recite. But it was not always so.

Santa Clara County will soon have a large solar energy system in its own backyard ... This incredible matching opportunity helps us continue our work in bringing critical local news to your ...

The moon’s large size, low density ... Some are in tightly bunched orbits, much closer together than the planets in our solar system. Some are Jupiter- or Neptune-size worlds that race on ...

They can be very large - the biggest ... to the protoplanetary disc, to the solar system we see today. 'Earth formed from this nebula, so our journey to understand it is also a journey of ...

CHILD: Vast means really, really big! MADDIE: There are a lot of stars in our universe. And the sun is a star that gives out heat and light. The sun is at the centre of the solar system.