Chemistry

Minerals Could Form on Mars Without an Oxygen-Rich Atmosphere

Earth's oxygen-rich atmosphere does more than provide the foundation for complex life. The oxygen in the atmosphere is so reactive…

1 month ago

Comet Impacts Could Have Brought the Raw Ingredients for Life to Europa’s Ocean

Jupiter is the most-visited planet in the Solar System, thanks largely to NASA. It all started with Pioneer 10 and…

2 months ago

Meteorites Bathed in Gamma Rays Produce More Amino Acids and Could Have Helped Life get Going on Earth

Our modern telescopes are more powerful than their predecessors, and our research is more focused than ever. We keep discovering…

2 months ago

The Most Devastating Solar Storms in History are Scoured Into Tree Rings

Trees are like sentinels that preserve a record of shifting climates. Their growth rings hold that history and dendrochronology studies…

3 months ago

Early Life on Mars Might Have Wiped Out Life on Mars

Life might have wiped itself out on early Mars. That's not as absurd as it sounds; that's sort of what…

4 months ago

The Heaviest Element Ever Seen in an Exoplanet’s Atmosphere: Barium

Astronomers have spotted barium in the atmosphere of a distant exoplanet. With its 56 protons, you have to run your…

4 months ago

Scientists Discover a New Way Exoplanets Could Make Oxygen; Unfortunately, it Doesn’t Require Life

Finding oxygen in an exoplanet's atmosphere is a clue that life may be at work. On Earth, photosynthetic organisms absorb…

4 months ago

Water Worlds Could Have Plumes of Nutrients Carried up From Down Below

Earth's oceans are one huge, uniform electrolyte solution. They contain salt (sodium chloride) and other nutrients like magnesium, sulphate, and…

7 months ago

Carbon-12 is an Essential Building Block for Life and Scientists Have Finally Figured Out How it Forms in Stars

Artist's impression of a red giant star. Their cores are cauldrons where carbon-12 is produced. Credit:NASA/ Walt Feimer Each of…

9 months ago

Astronomers Find a Star That Contains 65 Different Elements

Have you ever held a chunk of gold in your hand? Not a little piece of jewelry, but an ounce…

9 months ago