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EarthSky Voices

New fossil discovery may add 100s of millions of years to animal evolution

A new fossil discovery may be the oldest animal fossil on record. The 890-million-year-old sponge would push back the evolutionary timeline for animals.

Artificial intelligence’s racial and gender bias problem

Artificial intelligence sometimes discriminates by race and sex. Rights-based regulations are needed to ensure that AI will not exacerbate inequalities.

Fossil footprints are oldest found in Americas

Fossil footprints discovered in White Sands National Park, New Mexico, are the oldest known in the Americas. These footprints date back 23,000 years.

Bible story of Sodom revisited. Was it a meteor strike?

The Bible story of Sodom and Gomorrah describes ancient cities destroyed for their wickedness. New research suggests a meteor impact instead.

What is time, and why does it move forward?

What is time, and why does it move forward? Cosmologist Thomas Kitching of University College London explains how the arrow of time points to the future.

Sex in space: Time to talk about it?

Sex in space has been a taboo subject for decades. But, these authors point out, it'll be necessary for the survival of the human race.

NASA drought research: Glimpsing the future

New NASA drought research is showing how the U.S. Southwest might change in the future, under different scenarios of adaptation and mitigation.

Reptiles as pets: dispelling the myths

Increasingly, people oppose owning reptiles as pets, believing they pose a danger to public health or are too cold to love. Why do reptiles get a bad rap?

Hurricane Ida: 4 essential reads about New Orleans hurricane risk, and more

Hurricane Ida hit the Louisiana coast with 150 mph (240 km/h) winds on August 29, 2021, 16 years to the day after Hurricane Katrina devastated New Orleans on nearly the same path. What does climate change have to do with these powerful storms?

Does outer space end, or does it go on forever?

Can you travel to outer space and never stop? Science can tell us a lot. But some things we don’t know yet, like whether space just goes on forever.