Distant quasars may hold the key to spotting elusive gravitational waves—and revealing hidden dimensions of the universe.

Apples-to-apples comparisons in the distant universe are hard to come by. Whether the subject is dwarf galaxies, supermassive ...

University of Colorado Boulder astrophysicist Jeremy Darling is pursuing a new way of measuring the universe's gravitational ...

This is the metadata section. Skip to content viewer section. ABSTRACT.Precision astrometry at microarcsecond accuracy has applications for a wide range of astrophysical problems. This paper is a ...

The detection of dark matter, the elusive type of matter predicted to make up most of the universe's mass ... which is based on astrometry, the precise measurement of the positions and motions ...