An Uncertain Future for the Night Skies
The night sky is now destined to change due to plans which involve placing thousands of satellites into low Earth orbits. Is there a cause for concern?
The Fault in Our (Unaligned) Stars
If dark matter did not exist, the visible matter in the universe should be able to explain all gravitational phenomena. But can it?
Spot the Difference! Disentangling High-z Galaxies
The early universe is a period of intense star formation across nearly all galaxies. Is it possible tell these galaxies apart from each other, when the universe was less than a few billion years old?
The Times They Are A-Changin’ (But the Stellar Mass Function of Massive Galaxies is Not!)
Massive galaxies arise by the time the universe is less than half its current age. Wait four billion more years, and by how much do these galaxies grow? The answer may surprise you.
Investigating Early Populations of Galaxies with the Best Telescopes in the Universe
Galaxy clusters act like cosmic telescopes, magnifying our view of the universe. These exceptionally massive structures allow astronomers to gaze deep into the cosmos and study galaxies during early ages of the universe in fantastic detail. With the completion of the Frontier Fields survey, we can now study a population of magnified, distant galaxies like never before.