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VLT Survey Telescope Captures Spooky Bat Signal in the Sky

The VLT Survey Telescope captured a large star-forming nebula resembling a bat, spanning an area equivalent to four full moons, about 10,000 light-years away.

  • On 31 October 2025, the European Southern Observatory released an image of a bat-shaped nebula taken with the VLT Survey Telescope at Paranal Observatory in Chile's Atacama Desert.
  • The nebula's appearance stems from young stars energizing hydrogen atoms, while dark filaments and dust grains block starlight, carving the bat-like silhouette.
  • OmegaCAM's 268-megapixel instrument provided detailed wide-field capture, combining visible filters and infrared observations from VISTA, ESO's Visible and Infrared Survey Telescope for Astronomy.
  • The ESO released the image on Halloween, offering stargazers a seasonal treat while encouraging the public to explore the publicly available survey data.
  • Survey teams note the image belongs to VPHAS+ and VVV projects, combining visible and infrared data to map the Milky Way plane and link RCW 94 and RCW 95 to the bat-shaped nebula.
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A spooky cosmic bat was spotted fluttering in the Halloween sky of the southern hemisphere: its image was in fact taken by the Vlt Survey Telescope, the telescope of the National Institute of Astrophysics hosted at the Osservat... (ANSA)

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Space Daily broke the news in Australia on Friday, October 31, 2025.
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