Life

Greenland’s Ice Sheet is Similar in Many Ways to the Solar System’s Icy Worlds and Can Teach Us How to Search for Life

Many regions on Earth are temperate, nutrient-rich, stable environments where life seems to thrive effortlessly. But not all of Earth.…

3 days ago

When Did Photosynthesis Begin?

Sometime around 2.4 billion years ago, a nascent planet Earth underwent one of the most dramatic changes in its history.…

2 weeks ago

Rogue Planets Could be Habitable

The search for potentially habitable planets is focused on exoplanets—planets orbiting other stars—for good reason. The only planet we know…

2 weeks ago

Galactic Panspermia. How far Could Life Spread Naturally in a Galaxy Like the Milky Way?

Can life spread throughout a galaxy like the Milky Way without technological intervention? That question is largely unanswered. A new…

3 weeks ago

Did Asteroid Impacts Provide Both the Heat and Raw Ingredients to Enable Life?

This is our Great Question: How did life begin on Earth? Anyone who says they have the answer is telling…

4 months ago

Lightning Strikes Helped Life get an Early Start on Earth

So, you want to create life? You're going to need some ingredients first. On Earth four billion years ago, you…

7 months ago

Since Perseverance is Searching for Life, What Will it Be Looking for?

You have to be careful what you say to people. When NASA or someone else says that the Perseverance rover…

8 months ago

The Interior of Enceladus Looks Really Great for Supporting Life

When NASA's Voyager spacecraft visited Saturn's moon Enceladus, they found a body with young, reflective, icy surface features. Some parts…

9 months ago