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Caption This image from NASA?s James Webb Space Telescope shows a portion of the Leo P dwarf galaxy (stars at lower right represented in blue). Leo P is a star-forming galaxy located about 5 million light-years away in the constellation Leo. A team of scientists collected data from about 15,000 stars in Leo P to deduce its star formation history. They determined that it went through three phases: an initial burst of star formation, a ?pause? that lasted several billion years, and then a new round of star formation that is still continuing. The image from Webb?s NIRCam (Near-Infrared Camera) combines infrared light at wavelengths of 0.9 microns (represented in blue), 1.5 microns (green), and 2.77 microns (red). The stars in Leo P appear blue in comparison to the background galaxies for several reasons. Young, massive stars that are common in star-forming galaxies are predominantly blue. Leo P also is extremely lacking in elements heavier than hydrogen and helium, and the resulting ?metal-poor? stars tend to be bluer than Sun-like stars. A bubble-like structure at bottom center is a region of ionized hydrogen surrounding a hot, massive O-type star. Credits Image NASA, ESA, CSA, Kristen McQuinn (STScI) Image Processing Joseph DePasquale (STScI)

Space

James Webb captures a beautiful smattering of blue stars

The striking blue stars of the Leo P dwarf galaxy appear dashed across the lower right corner of this image from NASA's James Webb Space Telescope

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Physics

A cosmic shape could explain the fundamental nature of the universe

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Health

Mind-controlled robotic arm lets people with paralysis touch and feel

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Environment

Air monitoring station records biggest ever jump in atmospheric CO2

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Humans

Celtic tribe’s DNA points to female empowerment in pre-Roman Britain

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Technology

Tiny insect-like robot can flip, loop and hover for up to 15 minutes

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Physics

Ultra-thin material creates a magnetic mystery

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Space

Mars may have a solid inner core like Earth does

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Environment

Zero-carbon shipping fuel could be a new source of pollution

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Technology

Humanoid robot learns to waltz by mirroring people’s movements

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Humans

Ancient society may have carved ‘sun stones’ to end volcanic winter

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Physics

Laser technique measures vast distances with nanometre precision

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Life

Rabbits may eat their own teeth to boost their calcium intake

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Space

Astronomers baffled by bizarre ‘zombie star’ that shouldn’t exist

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Life

Giant isopod named after Darth Vader is a delicacy in Vietnam

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Environment

Melting ice reveals millennia-old forest buried in the Rocky mountains

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Space

A supermassive black hole is sending out a mysterious pulsing beat

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Humans

Intricate ancient tattoos revealed by shining lasers on mummies

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Health

Golden oyster mushrooms may stave off signs of ageing

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Life

Fossil claimed to be new species of mosasaur is suspected forgery

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