While the composition of gas and dust in a molecular cloud is fairly uniform, everything changes once a star begins to form.

The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

The formation of our solar system from a singular nebula raises an intriguing question: why did each planet develop with a ...

Observe the sky today as the historic seven planets parade is visible from America. Stargazers will be excited to see this on ...

The finding, reported in the science journal Geochimica et Cosmochimica Acta, is significant because the data reported by the ...

The OSIRIS-REx mission returned to the sample to Earth in September of 2023, and these studies show that it contains amino ...

A planet-size object that possibly once visited the solar system may have permanently changed our cosmic neighborhood by warping the orbits of the four outer planets, a new study suggests. The ...