The ESA's GAIA project will be able to measure parallax and stellar properties of about howmany stars?
A)one million
B)ten thousand
C)one billion
D)one hundred billion
E)None; it has a different purpose.

Question

Quizplus · Accepted Answer

The GAIA project is expected to measure parallax and other properties of approximately one billion stars in our galaxy. The ESA's GAIA project is expected to measure parallax and stellar properties of about 1 billion stars.

The ESA's GAIA Project Will Be Able to Measure Parallax