April 22, Earth Day is celebrated once again as over one billion people help the Earth recover from the ravages of ...

Since it launched in December 2013, Gaia charted the cosmos from a vantage point about a million miles (1.6 million kilometers) from Earth, at a spot called Lagrange point 2 (L2), where the ...

They wanted to find a way to prevent Gaia from drifting back toward its former home near the scientifically valuable second Lagrange point (L2) of the sun-Earth system and minimize any potential ...

But recently astronomers have used data collected by the European Space Agency’s Gaia spacecraft to detect three previously unknown black holes and, it turns out, are the closest known to Earth.

Europe's space agency, ESA, has retired the Gaia satellite after more than nine years of service. Launched in 2013, Gaia created the most detailed 3D ...

Since it launched in December 2013, Gaia charted the cosmos from a vantage point about a million miles (1.6 million kilometers) from Earth, at a spot called Lagrange point 2 (L2), where the ...

"The final commands have been sent to Gaia. This is the last time that the spacecraft will ever hear from its team on Earth," The ESA said. Those final commands included shutting down ...