Investigate

Study Suggests 3.2 Million-Year-Old Lucy Spent a Lot of Time in Trees

3,800-Year-Old Statue Resembling ‘The Thinker’ Found in Israel

A Wrenching Choice for Alaska Towns in the Path of Climate Change

Flamingo Mating Rules: 1. Learn the Funky Chicken

How Good Is a Bad Night’s Sleep?

C. Megan Urry, Peering Into Universe, Spots Bias on the Ground

A Forgotten Step in Saving African Wildlife: Protecting the Rangers

Space’s Trash Collector? A Japanese Entrepreneur Wants the Job

With Shifts in National Mood Come Shifts in Words We Use, Study Suggests

Solving a Mystery Behind the Deadly ‘Tsunami of Molasses’ of 1919

How Cassini Will Begin Its Date With Death on Saturn

Business: Black Friday Shoppers Hunt for Deals and Hit the Stores

An Ice Sheet the Size of New Mexico Hidden in Martian Crater

Donald Trump Has Options for Undoing Obama’s Climate Legacy

For Monkeys, Lower Status Affects Immune System

Business: S&P 500, Dow Hit Hit Record Highs on Black Friday

Business: After the Turkey, Some Hit the Shops to Start the Holiday Season

Perils of Climate Change Could Swamp Coastal Real Estate

Science: NASA Wants You to Take Part in Its Deep Space Poop Challenge

Your Dog Remembers

Your Dog Remembers More Than You Think

Thanksgiving Turkeys May Have Been Tamed 1,500 Years Ago in Mexico

Science: Asteroid That Wiped Out Dinosaurs Turned Earth’s Surface Into Liquid: Study

Eli Lilly’s Experimental Alzheimer’s Drug Failed in Large Trial

James Simons’s Foundation Starts New Institute for Computing, Big Data

Global Warming Alters Arctic Food Chain, Scientists Say, With Unforeseeable Results

James Simons’s Foundation Starts New Institute for Computing, Big Data

Science: Former Astronaut Scott Kelly Appointed United Nations Champion for Space

Your Phone Carries Chemical Clues About You, but There Are Limits to Using Them

Exxon Mobil Accuses the Rockefellers of a Climate Conspiracy

Mercury Is Shrinking, a ‘Great Valley’ Shows

Explaining the Other Side of Autumn Leaves

This Thanksgiving, Be Thankful for Science

Telescope That ‘Ate Astronomy’ Is on Track to Surpass Hubble

Cocka-Tools

Telescope That ‘Ate Astronomy’ Is on Track to Replace Hubble

Figaro, the Toolmaking Cockatoo

Your A.T.M. Is Covered in Microbes, but Mostly Harmless

Dr. Denton Cooley, Whose Pioneering Heart Surgery Set Off a 40-Year Medical Feud, Dies at 96

Who First Farmed Potatoes? Archaeologists in Andes Find New Evidence

Science: A Man Dissolved in an Acidic Hot Pool at Yellowstone. Here’s Why the Water Is So Dangerous

Drilling Into the Chicxulub Crater, Ground Zero of the Dinosaur Extinction

Science: Smithsonian Just Announced Its 2016 Ingenuity Award Winners

With an Eye on Hunger, Scientists See Promise in Genetic Tinkering of Plants

In Canada, a Direct Link Between Fracking and Earthquakes

Science: Stephen Hawking Gives Humans a Deadline for Finding a New Planet

Science: There Might Be an Ocean Under Pluto’s Surface

A Heavy Heart May Have Rolled Pluto Over

Tiny Salamanders Represent Three New Species

Science: Scientists Fear Climate Change Is Killing the Arctic’s Reindeer