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Editors of EarthSky
First X-ray detection of exoplanet passing in front of its star
The planet - HD 189733b - is a hot Jupiter, similar in size to Jupiter but more than 30 times closer to its star than Earth is to the sun. It orbits its star once every 2.2 days.
July 30, 2013
Station astronauts remotely control planetary rover from space
"Specifically, this project represents the first fully-interactive remote operation of a planetary rover by an astronaut in space." - Terry Fong
July 30, 2013
Monogamy evolved as a mating strategy
New research indicates that social monogamy evolved as a result of competition for females.
July 29, 2013
Hope for tigers lives in Sumatra
Preliminary density estimates for tigers in southern Sumatra are highest recorded for the island.
July 29, 2013
Mysterious centaurs are comets, say NASA scientists
"Our data point to a cometary origin for most of the objects, suggesting they are coming from deeper out in the solar system." - James Bauer
July 29, 2013
Van Allen radiation belts have a particle accelerator
Scientists knew something accelerated particles in the belts to 99 percent the speed of light. New results show the acceleration energy comes from within the belts themselves.
July 26, 2013
New sharp image of Whirlpool Galaxy
A new camera on a telescope at Kitt Peak National Observatory near Tucson has given us this beautiful view of the Whirlpool, which is also called M51.
July 26, 2013
Dolphins call each other by name
“Our results present the first case of naming in mammals, providing a clear parallel between dolphin and human communication." - Marine biologist Vincent Janik
July 25, 2013
New discoveries about quasars
“For the first time, we are able to see the actual extent to which these quasars and their black holes can affect their galaxies," - Astronomer Kevin Hainline
July 25, 2013
Limits to galactic growth
When a galaxy makes too many stars too quickly, it reduces its capacity for making stars in the future. Now astronomers have the first detailed images of this self-limiting galactic behavior.
July 25, 2013
