Vera Rubin Observatory presents first discoveries of faint Milky Way satellites

The Vera C. Rubin Observatory has presented its first scientific results, discovering two new satellites of the Milky Way galaxy. Universe Space Tech and Universe Today both report that the discoveries include the dwarf galaxy Aquarius IV and the star cluster Rubin-Gc1. The findings rely on data from the uncrewed observatory telescope, which began operating last year. [1][5][6]

According to Universe Space Tech, researchers linked with the Italian National Institute for Astrophysics identified the two faint satellites on the outskirts of our galaxy. The preliminary scientific results were detailed in two papers published in Research Notes of the AAS and The Astrophysical Journal. [1]

The uncrewed observatory is situated on the El Peñón peak of Cerro Pachón at an altitude of 2,682 meters in northern Chile. As FTMQ Space reported earlier, the facility held its official First Look Event in July 2025. Its primary task is conducting the ten year Legacy Survey of Space and Time across the southern sky. [8][10]

These new discoveries build on recent findings from the observatory. As FTMQ Space reported earlier, astronomers using the facility previously tracked a potential dwarf planet designated 2026 ED138 in the distant solar system beyond Pluto. [9]