• About
  • Sections
  • Topics
    • Climate
    • Earth Science
    • Oceans
    • Space & Planets
    • Health & Ecosystems
    • Culture & Policy
    • Education & Careers
    • Opinions
  • Projects
    • ENGAGE
    • Editors’ Highlights
    • Editors’ Vox
    • Eos en Español
    • Eos 简体中文版
    • Print Archive
  • Science Policy Tracker
  • Blogs
    • Research & Developments
    • The Landslide Blog
  • Newsletter
  • Submit to Eos
  • AGU.org
  • Career Center
  • Join AGU
  • Give to AGU
  • About
  • Sections
  • Topics
    • Climate
    • Earth Science
    • Oceans
    • Space & Planets
    • Health & Ecosystems
    • Culture & Policy
    • Education & Careers
    • Opinions
  • Projects
    • ENGAGE
    • Editors’ Highlights
    • Editors’ Vox
    • Eos en Español
    • Eos 简体中文版
    • Print Archive
  • Science Policy Tracker
  • Blogs
    • Research & Developments
    • The Landslide Blog
  • Newsletter
  • Submit to Eos
Skip to content
  • AGU.org
  • Career Center
  • Join AGU
  • Give to AGU
Eos

Eos

Science News by AGU

Support Eos
Sign Up for Newsletter
  • About
  • Sections
  • Topics
    • Climate
    • Earth Science
    • Oceans
    • Space & Planets
    • Health & Ecosystems
    • Culture & Policy
    • Education & Careers
    • Opinions
  • Projects
    • ENGAGE
    • Editors’ Highlights
    • Editors’ Vox
    • Eos en Español
    • Eos 简体中文版
    • Print Archive
  • Science Policy Tracker
  • Blogs
    • Research & Developments
    • The Landslide Blog
  • Newsletter
  • Submit to Eos
Katherine Kornei, Science Writer

Katherine Kornei

Katherine Kornei is a freelance science journalist covering Earth and space science. Her bylines frequently appear in Eos, Science, and The New York Times. Katherine holds a Ph.D. in astronomy from the University of California, Los Angeles.

The narrow entrance to Stanton’s Cave, about 40 meters above the Colorado River
Posted inNews

An Asteroid Impact May Have Led to Flooding near the Grand Canyon

Katherine Kornei, Science Writer by Katherine Kornei 22 October 202522 October 2025

There’s remarkable synchronicity between the timing of a paleolake in what is today Grand Canyon National Park and the formation of nearby Barringer Meteorite Crater.

Pieces of gray rock are embedded in a small plastic disk and held by a hand wearing a blue glove.
Posted inNews

A Flash, a Boom, a New Microbe Habitat

Katherine Kornei, Science Writer by Katherine Kornei 17 October 202517 October 2025

After an asteroid struck Finland long ago, microscopic life colonized the impact site within a few million years, new research reveals.

Layers of beige-colored rock with a vertical band of darker-colored rock. A yellow notebook appears at the bottom of the image.
Posted inNews

Spiky Sand Features Can Reveal the Timing of Ancient Earthquakes

Katherine Kornei, Science Writer by Katherine Kornei 30 September 202530 September 2025

Icicle-shaped features known as sand dikes form during ground shaking. New work reveals how these features can be used to date long-ago earthquakes.

Artist’s rendering of Earth’s horizon from space with an asteroid entering the atmosphere
Posted inNews

Submerged Crater near Europe Tied to an Impact

Katherine Kornei, Science Writer by Katherine Kornei 20 September 202520 September 2025

New subsurface imaging and rock samples suggest that Silverpit Crater formed from an impact that occurred roughly 45 million years ago.

Gray rocks appear against a dark sky, with a bright star in the background.
Posted inNews

A Survey of the Kuiper Belt Hints at an Unseen Planet

Katherine Kornei, Science Writer by Katherine Kornei 16 September 202516 September 2025

An analysis of more than 150 objects in the far reaches of the solar system suggests that a planet more massive than Mercury could be lurking beyond the orbit of Pluto.

An expanse of white snow and brown rock is seen from above.
Posted inNews

A Burst of Subglacial Water Cracked the Greenland Ice Sheet

Katherine Kornei, Science Writer by Katherine Kornei 28 August 202528 August 2025

When a lake beneath the Greenland Ice Sheet drained, its water burst through the ice sheet’s surface. This surprising event may have affected the movement of a nearby glacier.

A spherical, gray object with a mottled, shiny surface
Posted inNews

Fossilized Micrometeorites Record Ancient CO2 Levels

Katherine Kornei, Science Writer by Katherine Kornei 28 August 202528 August 2025

A cadre of iron-rich extraterrestrial particles picked up faint whiffs of our planet’s atmosphere when they fell to Earth millions of years ago.

Vacas marrones y blancas en un pastizal
Posted inNews

El queso en tiempos de la agricultura industrial y el cambio climático

Katherine Kornei, Science Writer by Katherine Kornei 19 August 202519 August 2025

Los pastizales y la dieta de las vacas están cambiando a medida que se calienta el clima, pero un experimento agrícola en Francia revela la importancia de proporcionar pastos a las vacas.

A woman wearing a blue T-shirt and black pants stands in a field of grass holding a large white balloon above her head.
Posted inFeatures

Stacey Hitchcock: From Fearing Storms to Seeking Them

Katherine Kornei, Science Writer by Katherine Kornei 28 July 202528 July 2025

This atmospheric scientist digs into the details of storms to help keep people safe.

A silver-colored spacecraft orbits above a red-colored planet with craters visible on its surface.
Posted inNews

Scientists Spot Sputtering on Mars

Katherine Kornei, Science Writer by Katherine Kornei 24 June 202524 June 2025

Nearly a decade’s worth of data went into the first direct observation of sputtering on Mars, which researchers believe contributed to the loss of the Red Planet’s atmosphere.

Posts pagination

1 2 3 … 28 Older posts
A view of a Washington, D.C., skyline from the Potomac River at night. The Lincoln Memorial (at left) and the Washington Monument (at right) are lit against a purple sky. Over the water of the Potomac appear the text “#AGU24 coverage from Eos.”

Features from AGU Publications

Research Spotlights

How Plant-Fungi Friendships Are Changing

22 October 202522 October 2025
Editors' Highlights

New Evidence for a Wobbly Venus?

29 September 202525 September 2025
Editors' Vox

Publishing Participatory Science: The Community Science Exchange

20 October 202517 October 2025
Eos logo at left; AGU logo at right

About Eos
ENGAGE
Awards
Contact

Advertise
Submit
Career Center
Sitemap

© 2025 American Geophysical Union. All rights reserved Powered by Newspack