Large pairs of planets thought to orbit each other without a star, do not exist after all. That conclude Leiden researchers, ...

The Orion Nebula, the Hyades and the Pleiades are visible to the naked eye. The star clusters are obviously examples of different stages of development.

The James Webb Space Telescope detects methyl cation (CH3+) in a young star system with a protoplanetary disk that is located ...

Orion, Pleiades, and Hyades may be stages of one star system’s life, revealing how star clusters form and change.