Cosmos

Webb Telescope Discovers Six Ghost Planets

The new observations in the young reflection nebula NGC 1333 provide clues as to how the solitary planetary vagabonds are formed.

By Jim Collins
Free-floating planets
Free-floating planets without a parent star are likely quite common in our Milky Way. Whether most of them originated from a conventional star system or emerged independently from a cloud of gas and dust is largely unclear. Image: NASA/JPL-Caltech
SOURCES:arXiv