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Astronomers using the Gaia space telescope have located two ancient streams of stars that helped the Milky Way galaxy grow and evolve more than 12 billion years ago.
Stellar archaeology is the study of the early history of the universe, based on its early composition. [1] By examining the chemical abundances of the earliest stars in the universe: metal-poor , Population II stars; insights are gained into their earlier, metal-free, Population III progenitors.
Her research focuses investigates the evolution and dynamics of galaxies, in particular the Milky Way, using locations, velocities, ages, and chemical abundances of stars to understand the formation process of galaxies, known as galactic archaeology. [5] [7] She also studies the nature of dark matter.
Pan-Andromeda Archaeological Survey (PAndAS) is a large-scale astronomical survey using the Canada-France-Hawaii Telescope. The survey is exploring the structure and content of the Andromeda Galaxy (M31) and its neighbour, the Triangulum Galaxy (M33). Clues to the formation of these galaxies may lie within the vast space being studied.
The International Space Station Archaeological Project (ISSAP) is a research group working in the areas of space and contemporary archaeology. It is the first full-scale archaeological investigation of human activity in space, studying the International Space Station (ISS) as an archaeological site. [1] [2] [3] It started in 2015.
Debris field of Perseverance rover's landing seen from Ingenuity helicopter. In archaeology, space archaeology is the research-based study of various human-made items found in space, their interpretation as clues to the adventures humanity has experienced in space, and their preservation as cultural heritage.
Eline Tolstoy, born in 1965, is a distinguished Dutch astronomer recognized for her significant contributions to understanding the formation and evolution of dwarf galaxies through the study of their resolved stellar populations. [1]
HERMES is mainly being used for the 'Galactic Archaeology with Hermes' (GALAH) Survey, which aims to reconstruct the history of our galaxy's formation from precise multi-element (~25 elements) abundances of 1 million stars derived from HERMES spectra.