TRAPPIST-1d isn't the Earth-like planet scientists had hoped it to be, according to JWST data

An illustration showing a dark sphere hiding behind a glowing orange one, with two smaller spheres farther away in the bottom and top right corners of the image.

There's bad news for our hopes of habitable planets existing around TRAPPIST-1, with the James Webb Space Telescope (JWST) finding no evidence for an Earth-like atmosphere on a third world orbiting the red dwarf.

However, that still leaves four other planets in orbit around TRAPPIST-1 that could be habitable, with at least two or three of them in what is regarded as the "habitable zone" where temperatures would be suitable for liquid water to exist —- assuming an Earth-like atmosphere that can retain heat.