Gaia’s all-sky view of our Milky Way galaxy and neighboring galaxies, based on measurements of nearly 1.7 billion stars in the mission’s first two years of taking data.

Stars pepper Gaia’s all-sky view of our Milky Way Galaxy and neighboring galaxies in this image based on the measurement of nearly 1.7 billion stars.

Gaia, Europe’s Milky Way–mapping spacecraft, shut down earlier this year. It was arguably the most important—and most ...

Since its launch in 2013, the Gaia mission has revolutionized the study of our Milky Way galaxy. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...

Just last week, for instance, the Hayden Planetarium at the American Museum of Natural History (AMNH) in New York City ...

The Milky Way just got a little more crowded. The European Space Agency’s Gaia spacecraft has mapped more than a billion stars in the galaxy with unprecedented accuracy and detail — and it has ...

Goodnight Gaia. The European Space Agency star-tracking satellite ceased operations on Wednesday, Jan. 15, 2025, after 12 ...

The European Space Agency will host a media briefing on Monday, June 13, beginning at 4 a.m. EDT (0800 GMT) to share the latest data from its Milky Way-charting Gaia mission. You can watch the ...

An artist's impression of ESA's Gaia satellite observing the Milky Way. The background image of the sky is compiled from data from more than 1.8 billion stars.

The Gaia mission of the European Space Agency (ESA) has officially ceased its scientific operations after 12 years of service. This spacecraft, dedicated to mapping the Milky Way, has exhausted its ...

Astronomers bid an emotional farewell to Gaia, expressing their gratitude for its more than decade-long mission that gave us groundbreaking insights into our home galaxy, the Milky Way.

European Space Agency’s Gaia space observatory has revealed strange and unexpected tsunami-like starquakes – movements on stars’ crusts similar to earthquakes we experience on our planet.