Giant planets that developed early in a star system's life could solve a mystery of why spiral structures are not observed in young protoplanetary discs, according to a new study. Giant planets that ...

Many protoplanetary disks in which new planets are formed are much smaller than thought. Using the Atacama Large Millimeter/submillimeter Array (ALMA) scientists of the Leiden Observatory (the ...

Stars and their planets form when large molecular clouds collapse in on themselves. Gravity pulls the dust and gas into a violent spiral, which flattens out into a structure known as a protoplanetary ...

This is an artist's impression of a young star surrounded by a protoplanetary disk in which planets (not shown to scale) are forming. This visual may only be used in conjunction of reporting/posting ...