Posts by 

Cristina Ortiz

Best deep-sky photos for September 2023: Nebulae and more

Enjoy this gallery of the best deep-sky photos of September 2023 from our EarthSky community. If you have a photo to share, send it in. We love to see them!

Ants, little but tough: Lifeform of the week

Ants are common insects with unique capabilities. They can harvest, herd, milk, and build amazingly complex and stable underground cities.

Water lilies, beautiful and colorful: Lifeform of the week

Water lilies are plants known worldwide. They are colorful and beautiful, and they are also important players in the aquatic ecosystem.

Iridescent contrails? Rainbow contrails? Something else?

They look like iridescent contrails. But, are they? We asked Les Cowley, an atmospheric optics expert, who gave a different opinion.

Tigers are the biggest cats: Lifeform of the week

Tigers are huge, fierce cats that are unique and beautiful. We tell you some curious facts about them here. Plus, watch a video about tigers.

Sea turtles are as old as dinosaurs: Lifeform of the week

All you need to know about sea turtles: as old as the dinosaurs, incredible navigators and natural survivors. But they need you. Learn what to do to help.

Hummingbirds, tiny and colorful: Lifeform of the week

Hummingbirds are tiny, fast and colorful. See some gorgeous photos of these birds and learn more about this fantastic lifeform of the week here.

Turkey-Syria earthquake: Death toll passes 37,000

The Turkey-Syria earthquake of February 6, 2023 - a 7.8 magnitude earthquake - has wreaked devastation on the area. Images, links and updates here.

Planetary conjunction photo gallery, spring 2022

View images of the planets lined up in the morning sky from this spring, 2022. The planetary conjunction of Venus and Jupiter draws the eye.