The main working hypothesis for the Mercury problem says that the planet is the victim of a collision with a different-sized object. The cataclysmic collision stripped much of the planet's mantle and ...

The formation of Mercury remains an unsolved mystery. The planet closest to the sun has a disproportionately large metallic ...

The Planetary Analogue Simulation Laboratory (PASLAB) is part of the Europlanet 2024 Research Infrastructure. It serves independent research purposes, but can be used in common projects/missions ...

Astronomers have confirmed the existence of a massive planet in the Nu Octantis binary star system, first suspected in 2004. Using advanced tools like the HARPS spectrograph, researchers found that ...

Sooner or later, a sizable asteroid could impact a populated area on Earth. How is the US, and the world, preparing?

Animations show the evolution of density and flow in simulations of a planet embedded in the envelope of a giant star, showing the interactions of the inspiralling planet with the gas in its vicinity.

The reason for this update is the barycenter. Our early conceptions of planets orbiting perfectly around the Sun might need to be slightly revised. While the Sun is unquestionably dominant in our ...

When our sun exhausts the hydrogen fuel in its core some 5 billion years from now, it will expand to become a red giant, engulfing the inner planets. The dynamics and possible outcomes of planetary ...