Gaia reveals a new member of the Milky Way family
Thursday, 17 February 2022 07:00
Our galaxy, the Milky Way, began forming around 12 billion years ago. Since then, it has been growing in both mass and size through a sequence of mergers with other galaxies.
Perhaps most exciting is that this process has not quite finished, and by using data from ESA’s Gaia spacecraft, astronomers can see it taking place. This in turn allows to reconstruct the history of our galaxy, revealing the ‘family tree’ of smaller galaxies that has helped make the Milky Way what it is today.
The latest work on this subject comes from Khyati Malhan, a Humboldt Fellow at the
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