An alien world just 70 light-years from Earth is one of the strangest we have found yet.
In addition, the team identified many of the components of VHS 1256 b's atmosphere. Those include unambiguous detections of methane, carbon monoxide, and water, with additional evidence of carbon dioxide.of the Max Planck Institute for Astronomy in Germany."We're seeing many molecules in a single spectrum from the JWST that detail the planet's dynamic cloud and weather systems.
It's thought that the two types of objects form pretty differently. Brown dwarfs generally form like stars, collapsing from a dense knot of material in a cloud of gas and dust and then sucking in more material to grow. Deuterium fusion is an intermediary step as the star grows, but some stars – the brown dwarfs – stop growing at that point and stay as they are.
Theoretically, planets can also form from the cloud collapse model; the estimated minimum mass for a cloud collapse object is one Jupiter. The dividing line between a planet and a brown dwarf is, therefore, the deuterium-burning mass limit, which means that VHS 1256 b's precise nature is unknown.
This is how they identified the various gasses they found in the object's atmosphere – and the clouds of sand that are constantly changing, likely composed of enstatite, forsterite, or quartz.
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