A massive bat-shaped cloud appeared in telescope images released on Halloween, spanning an area four times the size of a full moon. The European Southern Observatory’s VLT Survey Telescope in Chile caught this eerie celestial creature just in time for the spookiest night of the year, revealing a stellar nursery where infant stars are actively forming 10,000 light-years from Earth.
Flying between the southern constellations of Circinus and Norma, this space bat looks like it’s hunting the glowing spot hovering above it. What looks like a Halloween decoration is actually a star factory hard at work. Baby stars are being born right now inside those bat-shaped clouds of gas and dust.
Newborn Stars Make The Bat Glow Red
The bat gets its haunting red appearance from infant stars energizing the hydrogen gas around them. These young stars pump out enough energy to make the surrounding gas shine in an intense crimson shade, painting the cosmic bat’s wings and body across the night sky.
Dark filaments streak through the nebula like bones in a skeleton. These structures are colder, denser pockets of gas and dust that block visible light from stars behind them. Dust grains within these dark patches act like cosmic curtains, preventing starlight from reaching observers on Earth and creating the skeletal appearance.
Combining Light Wavelengths Reveals Hidden Details
Astronomers have catalogued the brightest parts of this stellar nursery. RCW 94 forms the bat’s right wing, while RCW 95 creates the body. Other portions remain officially unnamed.
Getting this shot required combining different types of light, akin to using different filters on a camera. Most of the bat’s shape and that red color came from photographing visible light, the kind human eyes can see. But astronomers also added infrared images from ESO’s VISTA telescope, which reveal the densest parts hidden inside the clouds. Putting both together shows details that would stay invisible otherwise.
A 268-Megapixel Camera Captured the Scene
OmegaCAM, a 268-megapixel camera aboard the VST telescope, made capturing this enormous creature possible. The telescope’s wide field of view allowed astronomers to frame the entire bat in a single portrait. For comparison, most smartphone cameras max out around 12 to 50 megapixels.
Both sets of telescope data are available to the public. Anyone curious enough can dig through the archives and hunt for more cosmic creatures hiding in space. Thousands of similar photos sit waiting for someone to discover them.
The telescope sits in Chile’s Atacama Desert at an observatory called Paranal. Italy’s National Institute for Astrophysics owns and runs it, though it’s hosted at a European facility designed for scanning large chunks of the southern sky.s.
While the nebula has existed for millennia, releasing this particular image on October 31st gives stargazers a cosmic treat to match the holiday’s spooky spirit. The bat continues its eternal flight through space, birthing new stars as it soars between constellations.