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James Webb space telescope

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Stunning JWST image proves we were right about how young stars form

It has long been thought that young stars forming near each other will be aligned in terms of their rotation, and observations from the James Webb Space Telescope have offered confirmation

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The Serpens Nebula

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JWST spotted an incredible number of supernovae in the early universe

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One of the biggest mysteries of cosmology may finally be solved

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Early galaxy seen by JWST contains giant young stars and supernovae

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Early galaxy seen by JWST contains giant young stars and supernovae

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Some of the greatest cosmic discoveries have come about by accident

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Some of the greatest cosmic discoveries have come about by accident

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Bizarre galaxy in the early universe died extremely young

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JWST will officially begin searching for exomoons around other planets

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JWST will officially begin searching for exomoons around other planets

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Famous supernova left a blazing hot neutron star at its centre

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Super Earths that seem to have oceans may actually be covered in magma

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JWST has taken extraordinary images of 19 nearby spiral galaxies

Astronomers have used the James Webb Space Telescope to take astonishingly detailed images of spiral galaxies, revealing how and where they spark star formation

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Galaxy cluster MACS0416, also known as the Christmas tree

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JWST and Hubble take stunning image of the 'Christmas tree' cluster

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Uranus, showing its rings and nine of the planet's 27 moons

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Stunning JWST image of Uranus shows 13 rings and nine moons

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Possibly the smallest stars ever discovered

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Astronomers have spotted what may be the smallest stars ever seen

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Wolf-Rayet stars are known to be efficient dust producers, and the Mid-Infrared Instrument (MIRI) on NASA?s James Webb Space Telescope shows this to great effect. Cooler cosmic dust glows at the longer mid-infrared wavelengths, displaying the structure of WR 124?s nebula. The nebula is made of material cast off from the aging star in random ejections, and from dust produced in the ensuing turbulence. This brilliant stage of mass loss precedes the star?s eventual supernova, when nuclear fusion in its core stops and the pressure of gravity causes it to collapse in on itself, and then explode. As MIRI demonstrates here, Webb will help astronomers to explore questions that were previously only left to theory about how much dust stars like this create before exploding in a supernova, and how much of that dust is large enough to survive the blast and go on to serve as building blocks of future stars and planets.

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Six of the most amazing space pictures from 2023

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