Eclipse Metals’ Gronnedal rare earths project in Greenland has cemented its position as a potential key source of the ...

Now New Village Arts Theatre in Carlsbad is producing “The Mountaintop,” with DeAndre Simmons as King and Taylor Renee Henderson as Camae. Durwood Murray Jr. is directing.

Stephanie Gandulla dives into the Middle Island Sinkhole at Thunder Bay National Marine Sanctuary, a remarkable "time capsule" offering a glimpse of Earth 2.5 billion years ago during the ...

The study focuses on life forms from the Proterozoic eon, which spanned from 2.5 billion to 539 million years ago. Proterozoic life was mostly small and soft, like sponges without hard skeletons, ...

Advanced tools and expanded fossil datasets have painted a clearer picture of the eukaryotic diversity of the Proterozoic eon, which has been hard to quantify. The findings show that Earth's severe ...

Advanced tools and expanded fossil datasets have painted a clearer picture of the eukaryotic diversity of the Proterozoic eon, which has been hard to quantify. The findings show that Earth's ...

With this new study, the chart of life now includes life forms from the Proterozoic Eon, 2,500 million to 539 million years ago. Proterozoic life was generally smaller and squishier ...

Roughly 2.5 billion years ago, Earth entered the Proterozoic Eon, the third of its four major geological eras, which lasted until 538 million years ago. By that time, life had already existed for at ...

However, in this case the Paleozoic era and Proterozoic eon should have been affected similarly, assuming a Milky Way with a stable galactic plane full of dust and the potential to disturb the Oort ...

During the Proterozoic Eon - 2.5 billion years to 543 million years ago - the sun was still a young star, much dimmer than today, and Earth required a stronger greenhouse effect to compensate and ...

Proterozoic Eon (2.5 billion - 541 million years ago): Development of more complex life forms (eukaryotes); appearance of multicellular organisms. Paleozoic Era (541 - 252 million years ago) ...

Kalin’s recent work has concentrated on understanding Earth’s evolution during the Proterozoic eon and he has conducted research projects in various locations, including Costa Rica ... K.T., Zeitler, ...