• 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
  • 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
  • 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
  • Blogs
    • Research & Developments
    • The Landslide Blog
  • Newsletter
  • Submit to Eos

comets

Illustration of the interstellar object ‘Oumuamua shedding dust while hurtling toward the distant Sun
Posted inNews

Interstellar Visitors Could Export Terrestrial Life to Other Stars

Nola Taylor Redd, Science Writer by Nola Taylor Tillman 22 January 20204 January 2023

A handful of interstellar objects and long-period comets could have scooped up microorganisms from Earth and carried them to worlds around other stars.

two-color composite image of 2I/2019 Borisov
Posted inNews

Interstellar Interloper Borisov Looks Like a Regular Comet, for Now

Nola Taylor Redd, Science Writer by Nola Taylor Tillman 4 October 201927 March 2023

A first look at the chemical composition of the interstellar comet Borisov reveals ingredients that look a lot like those found in solar system comets. That’s not likely to last very long.

A reflected-light image of the comet-containing meteorite
Posted inNews

Meteorite’s Hidden Treasure: A Comet

Mary Caperton Morton, Science Writer by Mary Caperton Morton 24 April 20194 October 2021

A fragment of a comet found hidden inside a meteorite is offering new insights into the dynamics of our young solar system.

View of Comet 67P
Posted inNews

More Discoveries in the Cards from Defunct Comet Mission

JoAnna Wendel, freelance science writer and illustrator by JoAnna Wendel 29 September 201719 July 2022

A year after the end of the Rosetta mission, the real scientific fun begins.

A picture of comet 67P/Churyumov-Gerasimenko, taken by the European Space Agency’s Rosetta spacecraft early this year.
Posted inNews

Cracking Comet: A Window to the Past

JoAnna Wendel, freelance science writer and illustrator by JoAnna Wendel 1 November 201615 November 2021

An unusual feature on comet 67P/Churyumov-Gerasimenko offers insights into cometary origins.

Image of comet 67P/Churyumov-Gerasimenko from a camera aboard Rosetta spacecraft shortly before the spacecraft’s controlled crash.
Posted inNews

Rosetta Spacecraft Death-Dives into Comet Companion—On Purpose

by R. Cowen 30 September 201617 January 2023

On the way to its demise, the probe intimately viewed a dust-spewing pit and measured close up the gravity field, temperature, and other features of the comet.

An artist’s representation of comet C/2014 S3, which contains material from the early inner solar system
Posted inNews

Comet with Stunted Tail Hints at How Solar System Formed

JoAnna Wendel, freelance science writer and illustrator by JoAnna Wendel 18 May 201617 November 2021

Finding out whether just a few or many of this newfound type of rocky object roam deep space should help scientists sort among contrasting scenarios of the solar system's infancy.

Posted inResearch Spotlights

Cracks on Comets Most Likely Caused by Thermal Stress

by David Shultz 21 October 20156 October 2021

Networks of cracks in the surface of 67P/Churyumov-Gerasimenko may have originated from rapid heating and cooling of the comet's surface.

Posted inAGU News

McEwen Receives 2015 Whipple Award

by AGU 24 September 20153 May 2023

Alfred McEwen will receive the 2015 Whipple Award at the 2015 American Geophysical Union Fall Meeting, to be held 14–18 December in San Francisco, Calif. The award recognizes an individual who has made an outstanding contribution in the field of planetary science.

Posted inNews

Comet Lander Makes a Hard Discovery

JoAnna Wendel, freelance science writer and illustrator by JoAnna Wendel 31 July 201517 January 2023

The Philae probe, dropped onto a comet by the Rosetta spacecraft, has made contact with a surface thought too hard to be on a comet and has detected a few organic molecules new to comet exploration.

Posts pagination

Newer posts 1 2 3 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

What’s Changed—and What Hasn’t—Since the EPA’s Endangerment Finding

24 June 202524 June 2025
Editors' Highlights

Coupled Isotopes Reveal Sedimentary Sources of Rare Metal Granites

17 June 202516 June 2025
Editors' Vox

Inside Volcanic Clouds: Where Tephra Goes and Why It Matters

16 June 202512 June 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