- Features

- Meter

- Advances

- Observatory

- 50, 100 & 150 Years Ago

- Reviews

- The Science of Health

- Letters

- The Science Agenda

- From the Editor

- Graphic Science

- Q&A

- The Universe

- Mind Matters

- Forum

Features

- Intervention at an Early Age May Hold Off the Onset of Depression

- How Analyzing Cosmic Nothing Might Explain Everything

- How Much Vitamin D Do You Need to Stay Healthy?

- Why Are Alaska's Rivers Turning Orange?

- Asexuality Is Finally Breaking Free from Medical Stigma

- Inside Mathematicians' Search for the Mysterious 'Einstein Tile'

Meter

- Poem: 'Baby Crocodile'

Advances

- Rising Temperatures Are Turning Some Animals Nocturnal

- Sperm Cell Powerhouses Contain Almost No DNA

- Computers Sculpt Hopping Gelatinous Robots

- Alien World Denser Than Steel Confounds Our Understanding of Planet Formation

- To Predict Snowfall, NASA Planes Fly into the Storm

- Quick Hits: Science News Briefs from around the World: January 2024

- How a Parasitic Worm Forces Praying Mantises to Drown Themselves

- Fossils Finally Reveal Fiery Colors of Prehistoric Animals

- JWST Spots Baby Sun Spitting Up Supersonic Flows

- Ping-Pong Ball Insulators Can Block Noise

- Scientists Destroy Illusion That Coin Toss Flips Are 50–50

- Starfish Are Heads--Just Heads

- The Gambling Strategy That's Guaranteed to Make Money and Why You Should Never Use It

Observatory

- Calling Our Times the 'Anthropocene Epoch' Matters Dearly to You

50, 100 & 150 Years Ago

- January 2024: Science History from 50, 100 and 150 Years Ago

Reviews

- How to Escape a Time Loop You Don't Really Want to Leave

- How the Moon Shaped Human History, from Religion to Climate

The Science of Health

- Now There Are Better Ways Than BMI Charts to Assess Health Risks

Letters

- Readers Respond to the September 2023 Issue

The Science Agenda

- As the Climate Crisis Deepens, High-Polluting Nations Must Start Paying Reparations

From the Editor

- Vitamin D Hope and Hype, Cosmic Voids and Preventing Depression

Graphic Science

- See Your Body's Cells in Size and Number

Q&A

- Cats Are Perfect. An Evolutionary Biologist Explains Why

The Universe

- Here's How to Bring Mars Down to Earth: Let NASA Do What NASA Does Best

Mind Matters

- To Lead a Meaningful Life, Become Your Own Hero

Forum

- The World Solved Acid Rain. We Can Also Solve Climate Change

Table of Contents

Scientific American: January 2024 Vol. 330, Issue 1

Features

Intervention at an Early Age May Hold Off the Onset of Depression

How Analyzing Cosmic Nothing Might Explain Everything

How Much Vitamin D Do You Need to Stay Healthy?

Why Are Alaska's Rivers Turning Orange?

Asexuality Is Finally Breaking Free from Medical Stigma

Inside Mathematicians' Search for the Mysterious 'Einstein Tile'

Meter

Poem: 'Baby Crocodile'

Advances

Rising Temperatures Are Turning Some Animals Nocturnal

Sperm Cell Powerhouses Contain Almost No DNA

Computers Sculpt Hopping Gelatinous Robots

Alien World Denser Than Steel Confounds Our Understanding of Planet Formation

To Predict Snowfall, NASA Planes Fly into the Storm

Quick Hits: Science News Briefs from around the World: January 2024

How a Parasitic Worm Forces Praying Mantises to Drown Themselves

Fossils Finally Reveal Fiery Colors of Prehistoric Animals

JWST Spots Baby Sun Spitting Up Supersonic Flows

Ping-Pong Ball Insulators Can Block Noise

Scientists Destroy Illusion That Coin Toss Flips Are 50–50

Starfish Are Heads--Just Heads

The Gambling Strategy That's Guaranteed to Make Money and Why You Should Never Use It

Observatory

Calling Our Times the 'Anthropocene Epoch' Matters Dearly to You

50, 100 & 150 Years Ago

January 2024: Science History from 50, 100 and 150 Years Ago

Reviews

How to Escape a Time Loop You Don't Really Want to Leave

How the Moon Shaped Human History, from Religion to Climate

The Science of Health

Now There Are Better Ways Than BMI Charts to Assess Health Risks

Letters

Readers Respond to the September 2023 Issue

The Science Agenda

As the Climate Crisis Deepens, High-Polluting Nations Must Start Paying Reparations

From the Editor

Vitamin D Hope and Hype, Cosmic Voids and Preventing Depression

Graphic Science

See Your Body's Cells in Size and Number

Q&A

Cats Are Perfect. An Evolutionary Biologist Explains Why

The Universe

Here's How to Bring Mars Down to Earth: Let NASA Do What NASA Does Best

Mind Matters

To Lead a Meaningful Life, Become Your Own Hero

Forum

The World Solved Acid Rain. We Can Also Solve Climate Change