Scientists believe that two asteroids might be fragments of long-lost "planetary embryos" from the early solar system.

Mars, Venus, Jupiter and Saturn should be visible to the naked eye, but with a telescope you can spot Neptune and Uranus.

Data collected by NASA's InSight lander suggest that ancient internal processes are responsible for the "Martian dichotomy" ...

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

Astronomers have made a groundbreaking discovery in the WASP-132 system, finding two new planets that defy previous ...

New research has revealed that Hot Jupiters do not always push away or destroy nearby planets during their migration. This ...

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

Mercury joins the night sky to complete a seven-planet alignment just after sunset for the end of February. Saturn leaves our ...

Astronomers discovered the gas giant planet — dubbed a "hot Jupiter " — in 2016, but have continued to investigate this ...

Baker said that there are other astronomical events that may be more interesting than the parade of planets. Baker said Mars ...

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

Mercury is the closest planet to the sun, followed by Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. Mercury orbits ...