a phenomenon called gravitational microlensing. "Microlensing occurs when three objects—an observer on Earth, a source of light, and a lens—virtually ideally align in space," says Prof.

A gravitational microlensing observation technique made this discovery possible. This artistic illustration depicts stars near the center of the Milky Way. Each star has a colored trail indicating its ...

Gravitational microlensing occurs when one star passes directly in front of a background star, as seen from Earth. The gravitational field of the foreground star acts like a lens, magnifying the ...

37,766 people played the daily Crossword recently. Can you solve it faster than others?37,766 people played the daily Crossword recently. Can you solve it faster than others?

The Neptune-sized world orbits a hypervelocity star, first hinted at in 2011 via gravitational microlensing. Astronomers, using Keck Observatory and Gaia data, have confirmed the system’s ...