When the solar system formed, rocks (and other dense, heavy materials in the dust cloud such as iron and uranium) tended to gather closer to the Sun, and these materials combined together to form ...

The Protoplanetary Disk and Planet Formation Approximately 4.6 billion years ago, our solar system originated from a vast cloud of gas and dust known as the solar nebula. As this nebula collapsed ...

Mar. 17, 2025 — A combination of cosmic processes shapes the formation of one of the most common types of planets outside of our solar system, according to a new ... Webb Telescope Captures Its ...

A region of an active star forming in the Ophiuchus constellation has given astronomers an analog for the formation of our solar system. It also includes the sources of elements found in the ...

Roughly 4.6 billion years ago, a dense cloud of gas and dust collapsed, forming a swirling disk that would eventually become our solar system. Most of this material led to the formation of the Sun.

At 4.5 billion years old, the Imilac meteorite dates back to the beginning of our solar system. Professor Caroline Smith, our Head of Collections and a meteorite expert, sheds light on the secrets the ...

The relative size of the inner planets of our solar system: Mercury, Venus, Earth and Mars. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert!

They also orbit near their stars, in many cases closer than Mercury is to the Sun. Our solar system, in contrast, appears to be different. “[Planetary scientists] have thought our solar system ...

A new model has been developed to simulate interstellar activity within our solar system and the nearby Alpha Centauri system ...