The most detailed map of the Milky Way is still being built, but you can check out its current and most complete iteration yet. Gaia is a mission run by the European Space Agency to catalogue the massive database of stars that make up our galaxy.
Spotted by IFLScience(opens in new tab), The ESA has released the third data drop from the Gaia mission(opens in new tab), and it contains more than enough space data to help make any earthling feel much, much smaller.
The previous release of data was back in December 2020. It covered information on over 1.8 billion stars. This includes details like the position, movements, brightness, and colours of these stars. The 3rd info release which happened just yesterday, builds on this data much further.
Not only do we have the classifications of stars, but Gaia also provides even further data like the chemical components which can then be used to work out even further details. These details even let Gaia differentiate between stars not originally formed in the Milky Way, but were rather absorbed as the galaxy grew.
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“Our galaxy is a beautiful melting pot of stars,” explains Dr Alejandra Recio-Blanco of the Observatoire de la Côte d’Azur in France, and member of the Gaia collaboration.
“This diversity is extremely important, because it tells us the story of our galaxy’s formation. It reveals the processes of migration within our galaxy and accretion from external galaxies. It also clearly shows that our Sun, and we, all belong to an ever-changing system, formed thanks to the assembly of stars and gas of different origins.”
The Gaia data
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