Posts by 

Cristina Ortiz

Tyrannosaurus rex not so smart, after all

Tyrannosaurus rex dinosaurs had huge skulls, but does that imply they were very smart? Were they as intelligent as monkeys? Crocodiles?

Vultures are the best clean-up crew: Lifeform of the week

One might think of vultures as animals that make you cringe, but, really, they win the gold medal for cleaning the environment and protecting us from disease.

Seahorses are tiny, ravenous creatures: Lifeform of the week

Seahorses look like a blend of different animals, making them mysterious and efficient. With no stomach, they have to eat nearly constantly.

Eclipse day comet Pons-Brooks! Favorite photos here

Have you seen Comet Pons-Brooks yet? If not, here are some beautiful images from our talented community of photographers. Enjoy them!

Moon and Jupiter. Our favorite photos here!

Did you see the moon and Jupiter close together on March 13, 2024? Check out the images our talented photographers captured, including the Galilean moons!

Photos of AR3590, biggest sunspot of Solar Cycle 25 so far

Did you get to see epic AR3590? If not, here's the story of a sunspot that has made history! And check out our YouTube videos as well.

Venus and Mars closest on February 21 and 22, 2024

Venus and Mars were closest on February 21 and 22. Did you miss them? Don't worry, we compiled a gallery of EarthSky community photos, showing this cosmic duo.

Whales are the biggest living animals: Lifeform of the week

Whales are not just the biggest animals on the planet, they have smashed other records, too. And they way they communicate and eat ... Wow!

Zebras, beautiful and endangered: Lifeform of the week

Happy International Zebra Day! It's a great opportunity to raise awareness about zebras - best known for their beautiful stripes - and their endangered status.

Ocean sunfish are odd, gentle giants: Lifeform of the week

Because normal is boring, we love this large and odd-looking fish. Read more about ocean sunfish, the gentle giants, and watch a video.