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Editors of EarthSky

Cluster spacecraft detects elusive space wind

A new study provides the first conclusive proof of the existence of a space wind first proposed theoretically over 20 years ago.

View from space: Arizona Yarnell Hill fire

NASA’s Aqua satellite captured this image of the Yarnell Hill fire in Arizona on July 1, 2013. The fire was still burning on July 2, and 19 firefighters had been killed.

Pluto’s smallest moons receive their official names

The names of Pluto’s two smallest known moons, previously referred to as “P4” and “P5,” have been formally approved by the International Astronomical Union (IAU).

Cloud modeling expands estimate of life-supporting planets

Current data suggest there is approximately one Earth-size planet in the habitable zone of each red dwarf star. This study roughly doubles that estimate.

Most sustainable office building in the world

In Munich, a newly erected office building - called the NuOffice - has been awarded an internationally recognized green design certification in platinum.

View from space: Four largest Texas cities

This striking astronaut photograph taken from the International Space Station (ISS) shows the four largest cities in Texas at night.

Zapping salt out of seawater

Chemists are hopeful their new energy-efficient method to desalinate water can be scaled up for personal or even municipal uses

Voyager spacecraft explores final frontier of our solar bubble

Data from Voyager 1, now more than 11 billion miles from the sun, suggest the spacecraft is closer to becoming the first human-made object to reach interstellar space.

Exploring dinosaur growth

Using a combination of biomechanical analysis and bone histology, palaeontologists have shown how one of the best-known dinosaurs switched from four feet to two as it grew.

Gas-giant exoplanets cling close to their parent stars

Around many types of stars, distant gas-giant planets are rare and prefer to cling close to their parent stars. The impact on theories of planetary formation could be significant.