• About
  • Special Reports
  • Topics
    • Climate
    • Earth Science
    • Oceans
    • Space & Planets
    • Health & Ecosystems
    • Culture & Policy
    • Education & Careers
    • Opinions
  • Projects
    • ENGAGE
    • Third Pod from the Sun
    • Eos en Español
    • Eos 简体中文版
    • Print Archive
  • Newsletter
  • Submit to Eos
  • AGU.org
  • AGU Publications
    • AGU Journals
    • Editors’ Highlights
    • Editors’ Vox
  • Career Center
  • AGU Blogs
  • Join AGU
  • Give to AGU
  • About
  • Special Reports
  • Topics
    • Climate
    • Earth Science
    • Oceans
    • Space & Planets
    • Health & Ecosystems
    • Culture & Policy
    • Education & Careers
    • Opinions
  • Projects
    • ENGAGE
    • Third Pod from the Sun
    • Eos en Español
    • Eos 简体中文版
    • Print Archive
  • Newsletter
  • Submit to Eos
Skip to content
Eos

Eos

Science News by AGU

Sign Up for Newsletter

orbits & rotations

Europa situated in front of Jupiter.
Posted inResearch Spotlights

Dynamics of Ocean Worlds Likely Controlled by Their Rotation

by Morgan Rehnberg 9 May 20229 May 2022

New simulations suggest that subsurface oceans on icy moons with small natural Rossby numbers may be dominated by rotational effects.

Illustration of an exoplanet in the foreground with other exoplanets and their host star in the distance
Posted inFeatures

Tidally Locked and Loaded with Questions

by Caroline Hasler 17 February 202217 February 2022

Tidally locked planets always present the same face to their host stars. What does this mean for their potential to support life?

A yellow and orange star in the center of the image. A vertical line through the center of the star indicates the star’s spin axis, and two white arrows indicate that the star rotates clockwise. An exoplanet transits the star as a dark circle. Its orbit cuts across the star’s surface as a white line with arrows indicating that it moves from top to bottom.
Posted inNews

Peculiar Planets Prefer Perpendicular Paths

by Kimberly M. S. Cartier 29 July 202128 September 2021

Some exoplanets orbit their stars from pole to pole instead of across the equator. Why do they do that?

An image of Venus in visible light with swirls of clouds ranging from white to tan to light orange.
Posted inNews

Fifteen Years of Radar Reveal Venus’s Most Basic Facts

by Kimberly M. S. Cartier 1 June 202110 October 2021

Venus’s heavy atmosphere tugs the planet’s surface enough to change the length of its day by up to 21 minutes.

Slice of a meteorite determined to have originated on Mars on the basis of its minerology and gases trapped in the rock.
Posted inNews

Martian Meteorites Shed Light on Solar System’s Early Dynamics

by Mara Johnson-Groh 24 May 20214 October 2021

Chemical compositions of rocks from Mars indicate that the earliest orbits of Jupiter and Saturn were more circular than they are today.

Graphic showing what the JEDI instrument can see of Io and Europa from its trajectory
Posted inEditors' Highlights

New Energetic Neutral Atom Emissions from Jupiter, Io, and Europa

by Viviane Pierrard 15 June 202027 January 2022

The first Jovian off-equator Energetic Neutral Atom viewings reveal distinct emissions from Jupiter and the orbits of Io and Europa: Energetic particle injections surprisingly occur inside Io’s orbit.

Black-and-white satellite image of the asteroid Ryugu
Posted inNews

Sunburned Surface Reveals Asteroid Formation and Orbital Secrets

by Megan Sever 5 June 202015 February 2022

Thanks to spectacular high-resolution images from Hayabusa2, scientists can now better estimate how and when the asteroid Ryugu formed, how its orbit has changed over time, and what its surface looks like.

The International Space Station orbits through the thermosphere in May 2010.
Posted inResearch Spotlights

Atmospheric Drag Alters Satellite Orbits

by David Shultz 23 January 202013 October 2021

A new modeling study shows how the density of the thermosphere influences the paths of satellites in low Earth orbit.

Clouds and rainbows hang over a broad beach on Britain’s west coast.
Posted inOpinions

When Does Weather Become Climate?

by O. Bothe 14 August 201929 September 2021

Flexible definitions of the word “climate” may impede policy discussions on climate change. Closing apparent gaps between “climate” and “weather” may help reduce the ambiguity.

Black-and-orange illustration of a black hole and accretion disk
Posted inNews

New Proof That Accretion Disks Align with Their Black Holes

by R. Crowell 10 July 201924 May 2022

In the most detailed and highest-resolution black hole simulation to date, an international team of researchers showed the Bardeen-Petterson effect for the first time.

Posts navigation

1 2 Older posts

From AGU Journals

MOST SHARED
Reviews of Geophysics
“Global and Regional Trends and Drivers of Fire Under Climate Change”
By Matthew W. Jones et al.

HIGHLY CITED
Global Biogeochemical Cycles
“Emission of trace gases and aerosols from biomass burning”
By M. O. Andreae, P. Merlet

HOT ARTICLE
Geophysical Research Letters
“Relating Slip Behavior to Off-Fault Deformation Using Physical Models”
By Emily O. Ross et al.


About Eos
Contact
Advertise

Submit
Career Center
Sitemap

© 2022 American Geophysical Union. All rights reserved. Proudly powered by Newspack by Automattic