When Stars Align
When the stars align, you just might catch a planet, a black hole, or a binary star—but it’s hard to measure its mass! What does it take to do so?
When the stars align, you just might catch a planet, a black hole, or a binary star—but it’s hard to measure its mass! What does it take to do so?
The dark matter halos of galaxies and clusters of galaxies—objects of literally astronomical dimensions—have lots to say about the mysterious, likely subatomic, dark matter particle.
We’re attempting to map the universe in fine detail at its largest scales in 3D. Meet the astrophysical rouges that seek to upend our goal, and the tools we need to weed them out.
Why do some planets slightly more massive than Earth have gas envelopes, while others don’t?
Galaxies die—at least when measured by how vigorously they produce stars. What causes them to die?