The celestial body's unusual orbit “implies that something extraordinary occurred" in the early days of the solar system—and ...

Typically, telescopes are synonymous with bringing far-off objects close, but the newest member of the solar system was ...

Analysis of an ancient meteorite suggests that rocky planets both near and distant from the sun may have formed at the same ...

KQ14, nicknamed "Ammonite", was discovered using the Subaru Telescope and is a highly elliptical object with a perihelion and ...

For only the third time in history, astronomers have detected a new interstellar visitor — an object from another star — blitzing into our solar system.

Through the solar wind, the Sun touches every part of our solar system. The solar wind’s many impacts include creating auroras and stripping planets’ atmospheres.

For years, astronomers have been searching for a mysterious ninth planet lurking in the dark outer reaches of our solar system. Now, a team of researchers have taken a completely different ...

There are 8 planets in the solar system, each unique in size, distance, and composition. Learn about all the planets in order from the Sun, their characteristics, and key facts that make them ...

Explore cool facts about our solar system- from planets and moons to icy edges far away.

Discover interesting facts about the sun, the solar system's central star that supports all life on Earth.

In short, dynamical studies of the solar system have generally failed to consider the influence that passing field stars will have on the solar planets over time.

Learn how a possible ninth planet, the theoretical Planet X, could have acquired its wide orbit in the outer Solar System — a process that’s also applicable for other planets.