This marks the first X-ray evidence of an astrosphere around a star like our sun<\/a>, giving astronomers their clearest look yet at one of these stellar bubbles beyond our solar system<\/a>. Chandra’s sharp X-ray vision allowed astronomers to detect faint, extended emission around HD 61005 \u2014 the glowing outline of its astrosphere. The X-rays are produced where the star’s<\/a> fast, dense wind collides with colder surrounding interstellar gas. When high-speed particles from the stellar wind interact with cooler material in space, they generate the X-ray light that makes the bubble visible to Chandra.<\/p>\n You may like<\/p>\n \n NASA’s Chandra X-ray Observatory reveals the faint, extended glow of an astrosphere surrounding the young sun-like star HD 61005. The bubble forms as the star’s powerful wind collides with surrounding interstellar gas, producing X-ray emissions. (Image credit: X-ray: NASA\/CXC\/John Hopkins Univ.\/C.M. Lisse et al.; Infrared: NASA\/ESA\/STIS; Optical: NSF\/NoirLab\/CTIO\/DECaPS2; Image Processing: NASA\/CXC\/SAO\/N. Wolk)<\/p>\n HD 61005 is about 100 million years old \u2014 young compared to our 4.6-billion-year-old sun \u2014 and its stellar wind<\/a> is far more intense. Researchers estimate it blows roughly three times faster and is about 25 times denser than the wind from our sun today. That added power helps inflate a larger, brighter astrosphere with hot gas. The surrounding interstellar environment also appears about a thousand times denser than our sun’s current neighborhood, amplifying the interaction and boosting the X-ray signal enough for Chandra to detect.<\/p>\n <\/p>\n “This new Chandra result about a similar star’s astrosphere teaches us about the shape of the sun’s, and how it has changed over billions of years as the sun evolves and moves through the galaxy,” lead author Carey Lisse from Johns Hopkins University said in a statement<\/a> sharing Chandra’s observations.<\/p>\n Astronomers have nicknamed HD 61005 the “Moth”<\/a> because of its wing-shaped debris disk seen in infrared light \u2014 dusty remnants from the star’s formation that appear sculpted by its motion through space. Observing its astrosphere offers a rare window into what the early solar system may have experienced, when the young sun’s wind was stronger and interactions with surrounding gas and dust more dramatic. The study also provides new insight into how stellar winds shape planetary environments and may influence the habitability of worlds<\/a> around other stars.<\/p>\n![\"A](\"https:\/\/www.newsbeep.com\/nz\/wp-content\/uploads\/2026\/02\/QhNwrKcdb7DjeJ8tPUPoCG.jpg\")
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