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Editors of EarthSky

New laser shows what substances are made of

A new laser that can show what objects are made of could help military aircraft identify hidden dangers such as weapons arsenals far below.

One star, three habitable planets

A team of astronomers has combined new observations with existing data to reveal a solar system packed full of planets.

Plants do math to get through the night

New research shows that to prevent starvation at night, plants perform accurate arithmetic division.

Migrating animals add new depth to how the ocean breathes

Animals ranging from plankton to small fish consume vast amounts of what little oxygen is available in the ocean’s aptly named “oxygen minimum zone” daily.

A revolutionary new 3D digital brain atlas

This is the first ever 3D microstructural model of the entire human brain, and it's publicly available to researchers world-wide at no cost.

Hubble spots galaxies in close encounter

The NASA/ESA Hubble Space Telescope has produced this vivid image of a pair of interacting galaxies known as Arp 142.

Tanzania’s birds survive in protected network

As climate change forces birds in Tanzania to head west, protected areas set aside for mammals are keeping them alive.

Explore Mars surface yourself: Pan and zoom new billion-pixel view

NASA's Mars rover Curiosity offers armchair explorers the next best thing to being there.

Possible record-setting Gulf of Mexico dead zone predicted

Spring floods across the Midwest are expected to contribute to a very large and potentially record-setting 2013 Gulf of Mexico "dead zone", according to researchers.

Video: Stunning animation of Earth’s greening over one year

NASA and NOAA satellite data from April 2012 to April 2013 was used to generate these animations and images.