Scientists used drones to map a previously-unknown, 1,600-year-old irrigation system that allowed farming in arid northwest China, one of world’s driest climates.

Eleanor Imster

January 16, 2018

Sirius rising over Lake Huron

The bright star Sirius rising over Lake Huron in Michigan.

Eleanor Imster

January 13, 2018

Winter light

Early January, over the Bothnian Sea in Sweden.

Eleanor Imster

January 11, 2018

Largest known prime number discovered

The new prime number, discovered by a collaborative computer project, is nearly one million digits larger than the previous record prime number.

Eleanor Imster

January 9, 2018

Scientists unearth 1st direct evidence of 1st Americans

Genetic analysis of DNA of an infant found at an Alaskan archaeological site is evidence of a previously unknown population of ancient people in North America.

Eleanor Imster

January 6, 2018

Flower pointers to Magellanic Clouds

In this image from Great Barrier Island, New Zealand, 2 flax flowers point to the Small and Large Magellanic Clouds.

Eleanor Imster

January 4, 2018

Eleanor Imster

Eleanor Imster has helped write and edit EarthSky since 1995. She was an integral part of the award-winning EarthSky radio series almost since it began until it ended in 2013. She and her husband live in Tennessee, where they enjoy guitar playing and singing. They have 2 grown sons.