How a ladybug warps space-time

Researchers at the University of Vienna and the Austrian Academy of Sciences, led by Markus Aspelmeyer have succeeded in measuring the gravitational field of a gold sphere, just 2 mm in diameter, using a highly sensitive pendulum—and thus the smallest gravitational force. The experiment opens up new possibilities for testing the laws of gravity on previously unattained small scales. The results are published in the journal Nature.