Globular Cluster

Hubble Revisits Messier 72: A Glittering Globular Cluster Revealed in Ultraviolet Light

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Hubble’s revisit of Messier 72 not only sharpens our visual understanding but also enhances our ability to conduct spectroscopic studies, derive metallicity indexes, and analyze the core dynamics of star clusters.

🌌 Introduction: Messier 72 Shines Again in Hubble’s Ultraviolet Gaze As part of the European Space Agency and NASA’s celebration of Hubble Space Telescope’s 35th anniversary, astronomers have turned their focus back to one of the most remote entries in the Messier catalog — Messier 72. This glittering globular cluster has been newly imaged using … Read more

April Skywatching : Your Guide to a Month of Celestial Wonders

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This April skywatching highlight, located approximately 34,000 light-years away in the outer halo of our Milky Way galaxy, is a vast spherical collection of hundreds of thousands of stars. Many of these stars are among the oldest known in the universe, estimated to be between 11 and 13 billion years old.

Introduction April 2025 unfolds a celestial tapestry rich with opportunities for skywatchers of all levels. From the vibrant dance of planets across the morning and evening skies to the fleeting streaks of the Lyrid meteor shower and a deep dive into the ancient heart of our galaxy with the globular cluster M3, this month offers … Read more