NASA and Hubble reveal IRAS 04302, the Butterfly Star: Understanding how new stars and planets develop | Watch video

Astronomers have unveiled stunning images of a young star, showcasing a striking structure that resembles butterfly wings. Utilising the combined capabilities of NASA’s James Webb Space Telescope (JWST) and the Hubble Space Telescope, researchers have captured intricate details of a protostar concealed within thick clouds of gas and dust. This remarkable observation offers a unique window into the earliest stages of star formation, shedding light on how stars and planets develop from dense interstellar material. By studying such young stellar objects, scientists can better understand the processes governing stellar birth, disk formation, and planetary evolution, making this discovery a significant milestone in modern astronomy.The object, officially designated IRAS 04302, is a protostar shrouded in thick gas and dust, invisible in normal optical light. The surrounding dusty disc flattens into a dark lane, blocking starlight and allowing astronomers to observe planet-forming material from an edge-on perspective.The remarkable images are a combination of infrared data from JWST and optical observations from Hubble. Webb’s instruments highlighted faint structures in the dust, revealing composition and distribution, while Hubble’s optical imaging captured fine details of the disc’s vertical and horizontal structure. The disc spans approximately 65 billion kilometres, vastly larger than our entire Solar System, and offers invaluable insights into the environments where new stars and planets take shape.Protostars like IRAS 04302 are stellar nurseries, the birthplaces of stars and potentially planets. Studying its dusty disc allows scientists to understand how dust grains settle, migrate, and eventually coalesce into planet-sized bodies. Some researchers even speculate that young planets may already be forming, creating the spirals and gaps observed in the disc.Two reflection nebulae, glowing above and below the dark lane, give the system its nickname, the “Butterfly Star.” These nebulae scatter light from the hidden protostar, revealing the properties of the surrounding dust and gas. Observations also indicate jets, outflows, and structural instabilities, showing how matter is dynamically shaping the emerging star system.The combined observations from JWST and Hubble mark a significant advancement in understanding stellar and planetary formation. IRAS 04302 provides astronomers with a unique opportunity to study the earliest stages of solar system development in extraordinary detail. By analysing the dust disc structure, nebulae reflections, and material flows, scientists can better model how stars and planetary systems like our own emerge from dense molecular clouds, shedding light on the complex processes of accretion, turbulence, and chemical evolution.Also Read | Amit Kshatriya: An Indian-American appointed as Associate Administrator and COO at NASA leading Moon and Mars mission