After three decades of searching, astronomers have found more than 6000 planets, but nothing quite like our own.
The new Terra Hunting Experiment in the Canary Islands is designed to find what we're really looking for: an Earth-size planet in an Earth-like orbit around a Sun-like star.
https://www.sciencenews.org/article/earth-analog-terra-hunting-experiment #space #science #nature #tech
A second, complementary sky survey called 2ES (the Second Earth Spectrograph) will soon begin looking at stars in the southern hemisphere.
Both surveys will measure stellar motions to an accuracy of 10 cm/sec--about the speed of a crawling baby! Amazing how far the tech has come.
