The SpaceX Crew Dragon spaceship will leave the International Space Station and splash down in the Atlantic Ocean on Friday, March 8, 2019. How to watch both events live.

Eleanor Imster

March 7, 2019

First photos in 100 years of black panther in Africa

There have been reports of black panthers in Africa for more than a century, but only 1 confirmed with photographic evidence - in a 1909 photo taken in Ethiopia - until now.

Eleanor Imster

March 5, 2019

Bees change scent as they age

A new study finds that honey bees develop different scent profiles as they age, and guard bees respond differently to returning foragers than to younger bees who've never ventured out.

Eleanor Imster

March 4, 2019

Great white shark genome decoded

It'll help unlock mysteries about these iconic apex predators - explaining their "superpowers" like wound-healing and long lifespans - and why they've thrived more than 400 million years.

Eleanor Imster

March 3, 2019

When and where did Earth get its oxygen?

Earth's atmosphere contains about 21% oxygen today. Plants produce it, and animals - including humans - breathe it. Ancient rocks provide clues about when the oxygen in Earth's atmosphere began to arise.

Eleanor Imster

March 1, 2019

Lunar halo over Mobius Arch

A lunar halo over one of the natural arches in California's Alabama Hills.

Eleanor Imster

March 1, 2019

Countdown to calving at Antarctic ice shelf

Cracks growing across the Brunt Ice Shelf are poised to release an iceberg about twice the size of New York City. A scientific presence on the ice shelf since 1955 has an uncertain future.

Eleanor Imster

February 25, 2019

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.