geology

Deep Down in Ocean Worlds, it’s Difficult to Tell Where the Oceans End and the Rock Begins

We all know what water is. And what rock is. The difference is crystal clear. Well, here on Earth it…

1 month ago

Do We Now Understand Why the Moon’s Near and Far Sides Look So Dramatically Different?

The Moon is easily the most well-studied object in the Solar System, (other than Earth, of course.) But it still…

1 month ago

The dinosaur killing asteroid hit the Earth at the most devastating possible angle

There are bad days, and then there are really bad days. 65 million years ago, life on Earth - especially…

2 months ago

Want to Mine the Moon? Here’s a Detailed Map of all its Minerals

The USGS' Astrogeology Science Center has released a complete mineral map of the Moon, which the lunar mining crowd is…

3 months ago

3 Billion Years Ago, the World Might Have Been a Waterworld, With No Continents At All

Evidence from an ancient section of the Earth's crust suggest that Earth was once a water-world, some three billion years…

5 months ago

A Distant Asteroid Collision Gave Earthly Biodiversity An Ancient Boost

About 466 million years ago, there was an asteroid collision in the asteroid belt between Mars and Jupiter. The collision…

11 months ago

The Moon is Older Than Scientists Thought

The most comprehensive and widely-held theory of how the Moon formed is called the 'giant impact hypothesis.' That hypothesis shows…

1 year ago

Astronomy Cast Ep. 522: Judging Age & Origins, part 1 – Earth Rocks

People always want to know how old everything is. And more specifically, they want to know how we know how…

1 year ago

Strange Landscapes on Mars were Created by Explosive Volcanoes

According to a new study from Johns Hopkins University, Mars' Medusa Fossae region was created by volcanic activity, a finding…

2 years ago

Early Earth Was Almost Entirely Underwater, With Just A Few Islands

Ancient grains of the mineral zircon help researchers paint a picture of Earth in the Hadean Eon, and that picture…

3 years ago