Plus, a little relief from the downward pull of gravity never hurt in the facial department. (mindbodygreen.com)
The young star is now stable in that the outward pressure from hydrogen fusion balances the inward pull of gravity. (science.howstuffworks.com)
They will then map the clusters in space and time to see how their density and structure evolved over billions of years under the competing pulls of gravity and dark energy. (kavlifoundation.org)