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Quick info
What it’s: The Southern Hemisphere view of the Milky Way galaxy
Where it’s: All round us
When it was shared: Oct. 29, 2025
We can’t see or picture the whole Milky Way galaxy, as a result of we’re positioned inside it. From Earth, we will observe solely a portion of the galaxy, and after we search for on the darkish, clear night time sky from a spot free of sunshine air pollution, the Milky Way seems as a fancy, busy band of stars and mud. This is our edge-on view of the dense galactic airplane of our galaxy. And that is simply the seen gentle view.
Silvia Mantovanini, a PhD pupil at Curtin University in Australia, took practically 40,000 hours to compile the information from two surveys referred to as the GaLactic and Extragalactic All-sky MWA (GLEAM) and GLEAM eXtended (GLEAM-X). The GLEAM and GLEAM-X surveys, performed utilizing the Murchison Widefield Array telescope, yielded ample knowledge over 28 nights in 2013 and 2014, and 113 nights from 2018 to 2020.
Thanks to vital enhancements in sky protection, decision and sensitivity, the brand new picture supplies twice the decision, has 10 instances the sensitivity and covers double the realm of the earlier GLEAM picture launched in 2019, in keeping with a statement from the International Centre of Radio Astronomy Research (ICRAR). Researchers say that solely the SKA-Low telescope, an array of tens of hundreds of radio antennae set to be accomplished subsequent decade, can surpass this stage of sensitivity and backbone.
This intensive survey view is the biggest low-frequency radio shade picture of the Milky Way ever created. Since many of the imaged area had by no means been noticed at these frequencies, this galactic panorama marks a big milestone, the researchers mentioned.
The low-frequency radio waves revealed remnants of exploded stars and areas of ionized gasoline the place new stars are forming. The “colors” of radio gentle captured within the picture assist astronomers distinguish between totally different objects within the sky. The giant crimson bubbles reveal useless stars and their increasing shells, whereas the compact blue areas are the place new stars are born.
The surveys comprise greater than 98,000 radio sources — together with pulsars, planetary nebulae and compact star-forming regions — across the Milky Way’s plane as seen from the Southern Hemisphere. The new image captures the stellar life cycle from start to finish: the evolution of stars, their formation in different regions of our galaxy, their interactions with other objects and, ultimately, their death.
The team’s work was published Oct. 28 in the journal Publications of the Astronomical Society of Australia.
For extra elegant house pictures, try our Space Photo of the Week archives.
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