Liz Kruesi

Contributing Writer

Illustration for first stars
cosmology

Whisper From the First Stars Sets Off Loud Dark Matter Debate

A surprise discovery announced a month ago suggested that the early universe looked very different than previously believed. Initial theories that the discrepancy was due to dark matter have come under fire.

An artist’s conception of the Vela Supercluster peeking out from behind the Milky Way’s Zone of Avoidance.
astrophysics

Hidden Supercluster Could Solve Milky Way Mystery

Astronomers generally stay away from the “Zone of Avoidance.” When one astronomer didn’t, she found a giant cosmic structure that could help explain why our galaxy moves so fast.

Q&A

Searching the Sky for the Wobbles of Gravity

The physicist Gabriela González is on the cusp of finding the first direct evidence of gravitational waves — soundlike wobbles in space-time produced by black holes and their kin.

Q&A

The Case for Complex Dark Matter

The physicist James Bullock explains how a complicated “dark sector” of interacting particles may illuminate some puzzling observations of the centers of galaxies.

About the author

Liz Kruesi is a freelance science writer specializing in astronomical topics. She has a bachelor’s degree in physics and studied astrophysics in graduate school. She lives in Austin, Texas.