Investigate

In California, a Move to Ease the Pressures on Aging Dams

SpaceX Plans to Send 2 Tourists Around Moon in 2018

Before Vaquitas Vanish, a Desperate Bid to Save Them

For Some Arctic Plants, Spring Arrives Almost a Month Earlier

Pregnancy Upon Pregnancy

‘Ring of Fire’ Eclipse Travels Across South America and Africa

Life on Mars: Preparing for the Red Planet

‘Ring of Fire’ Solar Eclipse Will Cross South America and Africa on Sunday

In an Ancient Burial Place, 3 Centuries of One Woman’s Descendants

Mildred Dresselhaus, the Queen of Carbon, Dies at 86

Small Brain, Big Smarts

Bumblebees Demonstrate the Power of Insect Brains

Singing While Pregnant

How Far to the Next Forest? A New Way to Measure Deforestation

How to predict and prepare for space weather

Certain bacteria protect against a disease that is a growing threat

How to use mosquitoes to combat disease

Plucking minerals from the seabed is back on the agenda

America’s first immigrants had to wait 8,000 years to be admitted

7 New Planets Could Host Alien Life

Lake Berryessa’s Spiraling Floodwater Mesmerizes the Locals

7 Earth-Size Planets Identified in Orbit Around a Dwarf Star

When Mismatched Voices and Lips Make Your Brain Play Tricks

Cosmos Controversy: The Universe Is Expanding, but How Fast?

SpaceX Launches Rocket to Internation Space Station

SpaceX Launches Rocket Carrying Space Station Cargo

SpaceX Scrubs Rocket Launch

Prey: The Reason Turtles First Came Out of Their Shells

Hunched Over a Microscope, He Sketched the Secrets of How the Brain Works

After Earth’s Worst Mass Extinction, Life Rebounded Rapidly, Fossils Suggest

Disappearing Seagrass Protects Against Pathogens, Even Climate Change, Scientists Find

Pedestrians and robots will soon share the pavements

How to stop fertiliser being washed away by the rain

The cause of nodding syndrome

Nasty chemicals abound in what was thought an untouched environment

Harvard and M.I.T. Scientists Win Gene-Editing Patent Fight

NASA Looks to Speed Timetable for Putting Astronauts in Deep Space

Humana Plans to Pull Out of Obamacare’s Insurance Exchanges

Ancient Jars Hold Clues About Earth’s Fluctuating Magnetic Fields

How to determine a protein’s shape

How to Keep the Bloom on That Valentine Rose

A Race to Document Rare Plants Before These Cliffs Are Ground to Dust

Growth Secrets of the Hydra

How a Little Bit of Hydra Regrows a Whole Animal

Peter Mansfield, M.R.I. Pioneer and Nobel Laureate, Dies at 83

Long Before Making Enigmatic Earthworks, People Reshaped Brazil’s Rain Forest

Lunar Eclipse and Green Comet Make for Busy Friday Night in the Sky

In an Age of Alternative Facts, Bill Nye’s New Show Brings Real Ones

What Makes a Woman a Good Dancer? Watch the Hips, a Study Says

Lava Fire Hose in Hawaii Returns for an Encore