Using NASA’s SPHEREx spacecraft, astronomers have studied a horde of mysterious "failed stars," or brown dwarfs, not-so-stellar loners that wander the darkness of space alone.
Astronomers used NASA's SPHEREx telescope to study brown dwarfs, or failed stars. One Caltech employee even commented that these objects "have a bit of a Gothic feel." Analysis of the spectra of brown dwarfs studied with SPHEREx revealed that their atmospheres are rich in various chemical compounds.