Contrail cirrus clouds have warmed the atmosphere more than all the carbon dioxide from planes since the dawn of aviation and will do so even more in the future.

Kimberly M. S. Cartier
Kimberly M. S. Cartier, Senior Science Reporter for Eos.org, joined the Eos staff in 2017 after earning her Ph.D. studying extrasolar planets. Kimberly covers space science, climate change, and STEM diversity, justice, and education
Honoring Volcanologist David Johnston as a Hero and a Human
A new biography details the life and legacy of the scientist who died on Mount St. Helens.
Chemical Patterns May Predict Stars That Host Giant Planets
Stars with giant planets tend to have a few key elements in abundance. A new algorithm used these patterns to predict hundreds of stars that will likely have exoplanets if we go looking for them.
An Underwater Telescope to Study Sky and Sea
To peer into the farthest reaches of the universe, you must first build a giant underwater telescope.
Planetary Low Tide May Force Regular Sunspot Sync Ups
A regular alignment of the planets—no, it’s not pseudoscience—makes a strong enough tug to regulate the Sun’s 11- and 22-year cycles.
Space Is Polluted by Junk…and It’s Getting Worse
The major shift from state to commercial space programs, as well as a sharp rise in the number of upcoming launches, raises concerns about our efforts to manage the problem.
Un-bee-lievable Geoscience Words in Record-Breaking Spelling Bee
Some spellers found that their Earth and space science words were honey sweet. Others were bee-trayed by stinging spellings.
Ammonia Ice Deposits on Pluto Hint at Recent Cryovolcanism
This discovery is the latest in a growing stack of evidence pointing to the presence of an ammonia-rich water ocean beneath Pluto’s icy crust.
Leaping Global Temperatures Make Frog Disease Deadlier
Climate change will shift the warmest months, when disease rates spike, into tadpole season, which could endanger the long-term survival of common frogs.
Metal Asteroid Inspires Works of Art
Student artists explore a mysterious metallic world through acrylic, ceramic, LEDs, and even string.