“The gas giants must have formed by 4 million years after the formation of the solar system,” Weiss says.

When most of us learn about the solar system, it seems like a pretty well-ordered place. Our Sun formed first, about five billion years ago, and the planets appeared a little later. As a very ...

Our Solar System formed from a gas cloud about halfway towards the edge of the disk, about 25,000 light-years from the center, in the central part of the disk if you were to slice it length-wise.

Scientists from the Lawrence Livermore National Laboratory recently announced that research indicates our solar system formed in less than 200,000 years. On a cosmic scale, that is very fast.

How our planets were formedFormation of the solar system in two different planetary populations: the inner rocky planets formed earlier than the outer gas and ice giants. (Illustration: Mark A ...

Two of the most mysterious planets in our solar system are Uranus and Neptune. These planets are also known as ice giants, due to their intermediate-mass and size which suggests an ice-rich ...

Astronomers know that our solar system formed about 5 billion years ago from material left over from previous generations of stars. However, beyond that, it gets a little murky. The prevailing ...

When did our solar system's planets form? Discovery of tiny meteorite may challenge the timeline How an odd star in the 'Gaia Sausage' could help solve one of astronomy's most enduring mysteries ...

A new study proposes two early solar system solids — chondrules and calcium-aluminum rich inclusions — formed at the same time. This theory rewrites our current understanding of the early ...

Fortunately for those who attempt to trace the origins of our Solar System, when the primitive solar nebula and planetary bodies began to form there were radioactive nuclei with a wide range of ...

The solar system lost its ninth planet back when Pluto was demoted to a dwarf planet, but research might indicate that there ...