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

Using the Keck Planet Imager and Characterizer (KPIC), astronomers have performed high-resolution spectroscopic observations ...

For decades, Pluto was celebrated as the ninth planet of our solar system. However ... leading to Pluto’s reclassification as a dwarf planet. This decision sparked widespread debate among ...

The dwarf planet ... reached the inner Solar System only later. For the current study, the researchers looked for previously unknown deposits of organic material on dwarf planet Ceres.

The building blocks of life could have been delivered to solar system dwarf planet Ceres by one or more space rocks from the outer asteroid belt.

The organic material found in a few areas on the surface of dwarf planet Ceres is probably of exogenic origin. Impacting asteroids from the outer asteroid belt may have brought it with them. In the ...

These bodies are thought to be largely unaltered remnants from the early days of the Solar System ... the scientific camera system and the spectrometer on board scanned the entire surface of the dwarf ...

Marcussen illustration Scientists have dubbed the exoplanet, a world well outside our solar system, Gaia-4b. The brown dwarf, not quite a planet or a star, is Gaia-5b. Respectively, they are 244 ...

A new study suggests that a planet ... solar system billions of years ago. Its journey could have permanently altered the orbits of the outer planets. This cosmic visitor, possibly a brown dwarf ...

The Gaia telescope aimed to create an accurate and detailed 3D map of billions of stars in our galaxy. Its findings have flipped astronomers' understanding of the Milky Way on its head and have led to ...

Using AI to comb through data gathered by NASA's Dawn spacecraft, scientists have conducted a detailed scan of the dwarf planet Ceres ... Planck Institute for Solar System Research (MPS) in ...