The so-called 'planetesimal belts' are filled with tiny millimeter-sized particles created by collisions between comets.

Visible from nearly every corner of the Earth, this event promises both a feast for the eyes and a moment to ponder ...

Arizona The post Could Psyche be the core of the planetesimal that struck Earth and formed the Moon? appeared first on Astronomy Magazine.

Trillions of icy exocomets have been found orbiting alien stars, reshaping our understanding of planetary systems.