Gaia space observatory bids farewell after a decade of mapping the stars

After more than a decade of mapping billions of stars across the Milky Way and beyond, a groundbreaking spacecraft is retiring. The European Space Agency’s space-based observatory known as Gaia is leaving behind a legacy of stunning discoveries that changed what we know about the universe. John Yang reports. PBS News is supported by - https://www.pbs.org/newshour/about/funders