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Posts by
Editors of EarthSky
Astronomers spy on galaxies in the raw
A CSIRO radio telescope has detected the raw material for making the first stars in galaxies that formed when the Universe was just three billion years old.
June 26, 2013
21% of homes account for 50% of greenhouse gas emissions
Energy conservation in a small number of households could go a long way to reducing greenhouse gas emissions, scientists are reporting.
June 26, 2013
Coincidence that sun and moon seem same size?
The sun and moon appear the same size in Earth's sky because the sun's diameter is about 400 times greater - but the sun is also about 400 times farther away.
June 26, 2013
Ten thousandth near-Earth object discovered
More than 10,000 asteroids and comets that can pass near Earth have now been discovered. The 10,000th near-Earth object, asteroid 2013 MZ5, was first detected on the night of June 18, 2013.
June 25, 2013
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.
June 25, 2013
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.
June 25, 2013
Plants do math to get through the night
New research shows that to prevent starvation at night, plants perform accurate arithmetic division.
June 24, 2013
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.
June 24, 2013
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.
June 21, 2013
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.
June 20, 2013
