Topic: Earth Science
Ordering Enough Water for Early Planet Earth

Ordering Enough Water for Early Planet Earth

artist's depiction of planets colliding. While major asteroid and comet impacts have often been devastating for life on Earth, life on Earth wouldn’t be here without impacts that occurred early in our world’s history.  As the story goes, Due to our planet’s position in the solar system and early hotness, it just didn’t start out with the oceans life enjoys today. Exactly when and what delivered all the H2O we enjoy today is an area of ongoing research. One leading theory looked to the early collision between the proto-Earth and a Mars-sized planet called Thea as one possible...

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Modern Melt

Modern Melt

Our Earth is currently working its way toward being the exact opposite of a snowball Earth as we see glaciers and ice caps receding across the planet. This is fundamentally changing our landscape and how we as humans interact with that landscape.  These changes...

Between Fire and Ice is Slush

Between Fire and Ice is Slush

Snowball Earth. Credit: NASA Our planet has been driven to environmental extremes at many times in its history, and many plants and animals - including humans - have demonstrated they can survive less than ideal conditions. The last major ice age hit its peak 20 to 26...

Dinosaurs Thrived After Ice

Dinosaurs Thrived After Ice

Archaeopteryx Credit: Peter Montgomery Jupiter’s moon Io is the most volcanic object in our solar system today, but our planet gave Io a run for its money more than 200 million years ago. At that point in our planet's history, our world was dominated by the Triassic...

Dino Prints Match Continents

Dino Prints Match Continents

One of the reasons we study the Moon is to help us understand the history of our own planet Earth. The shifting continents and weather patterns of Earth join forces to erase our world’s history. Occasionally, however, our planet reveals its past through the rocks...