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Sciworthy

The Encyclopedia of Science's Frontier

Home » Big Questions » What happened in Earth’s past? » Page 3

Category: What happened in Earth’s past?

What was the Earth like a long time ago? What have archaeologists found? What was it like before life started? How did life come to be?
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Antibiotic-resistant bacteria are way older than penicillin

Posted on February 10, 2022October 24, 2022 by Sciworthy

Remember the classic chases where Wile E. Coyote tries to catch Roadrunner but is often outsmarted? It turns out that bacteria have to…

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    Ancient bacteria leave behind fossils, too!

    Posted on February 1, 2022June 24, 2025 by Sciworthy

    Scientists used genetic technology to identify the different roles of bacteria present in ancient fossil formations called stromatolites.

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      A detailed look at a rare meteorite

      Posted on January 10, 2022June 25, 2025 by Sciworthy

      A carbonaceous meteorite that fell in Costa Rica holds organic compounds that are preserved from the earliest stages of our solar system,…

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        Building the molecules of life in the lab

        Posted on January 3, 2022June 24, 2025 by Gina Misra

        The hyperbranched polymer scaffold could have been the early primitive base for the emergence of life. @t_z_jia @CerberaOdollam…

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          Searching for the first light of fireflies

          Posted on October 18, 2021June 24, 2025 by Sciworthy

          Fireflies are bioluminescent, which means they glow. But were they always that way? Why do they glow? Scientists used genetics tools to find…

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            Intelligent life might be rare

            Posted on September 17, 2021October 24, 2022 by Sciworthy

            How hard is it for evolution to produce intelligent life like humans? We don't really know, but some computational modelers tried to answer…

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              The shape of the continents is not a coincidence

              Posted on September 13, 2021June 24, 2025 by Sciworthy

              Biological processes might have led to greater continental crust coverage than would be expected on a planet without life.

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                Could impact from asteroids eventually create life?

                Posted on July 13, 2021June 24, 2025 by Sciworthy

                Astrobiologists have discovered a possible new pathway for the prebiotic self-assembly of biologically important molecules by replicating…

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                  What the velociraptor’s brain tells us about its diet

                  Posted on April 30, 2021June 24, 2025 by Sciworthy

                  The brain of one of popular culture’s most infamous dinosaurs helps to clarify its diet and hearing range.

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                    Giant dinosaur tracks found in a cave in France

                    Posted on March 15, 2021June 25, 2025 by Gina Misra

                    Sauropods were previously thought to have had their heyday in the Late Jurassic period. Recent fossil evidence says it was probably much…

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                      Artist's impression of the planetary system around the red dwarf Gliese 581. Credit: ESO

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