Vesta, the second largest asteroid in our Solar System, has not experienced full differentiation into a metallic core, silicate mantle and basaltic crust,...
Recent measurements from NASA’s InSight mission show that Mars’ core is less dense than planetary scientists previously believed. This indicates that...
A team of researchers at the Bayerisches Geoinstitut has conducted high-pressure-temperature laboratory experiments to determine the crystal structure...
Water is an important component of exoplanets, with its distribution, that is, whether at the surface or deep inside, fundamentally influencing the planetary...
A surprisingly low amount of methane and a super-sized core hide within WASP-107b, a super-Neptune exoplanet approximately 212 light-years away in the...
Pluto’s surface is dominated by the huge, pear-shaped basin Sputnik Planitia. It appears to be of impact origin, but modeling has not yet explained its...
The trans-Neptunian dwarf planet Eris is tidally locked to its small moon Dysnomia. Recently obtained bounds on the mass of Dysnomia demonstrate that Eris...
A few decades ago, seismologists identified a thin layer with a lower velocity in Earth’s metallic liquid core. The origin of this layer, known as the...
Mars’ liquid iron alloy core is surrounded by a layer of fully molten silicate (magma) about 150 km thick, according to a pair of papers published in...
Many planetary scientists studying Jupiter’s moon Europa assumed that it formed with a metallic core during or shortly after accretion. New research...
Observations of an asteroid group indicate that they may have metal-rich surfaces, but those asteroids with measured densities are about half as dense...
The pressure and temperature conditions at which iron melts are important for rocky planets because they determine the size of the liquid metal core, an...
Astronomers using NASA’s Transiting Exoplanet Survey Satellite (TESS) have identified a dense, ultra-short-period sub-Earth planet transiting the bright,...
According to new analyses of data from the Seismic Experiment for Interior Structure (SEIS) instrument deployed during NASA’s InSight mission, Mars likely...
Terrestrial planets (Mercury, Venus, Earth, and Mars) are differentiated into three layers: a metallic core, a silicate shell (mantle and crust), and a...
Astronomers using Earth-based radar observations have measured some of the fundamental properties of the planet Venus: the precise length of a day, the...
The newly-discovered planetary core, named TOI-849b, is a gas giant that was either stripped of its gaseous atmosphere or that failed to form one in its...
An energetic head-on collision between a large planetary embryo and the proto-Jupiter about 4.5 billion years ago could explain puzzling gravitational...
