A First Map of the Entire Milky Way
Nearly a million miles from Earth, at a gravitationally stable point in space on the opposite side of our planet from the sun, is the …
Here’s How Everyone in the U.S. Could Witness the Total Solar Eclipse in Person
For a show that lasts less than three minutes, the total solar eclipse that will traverse the U.S. on Aug. 21 is already inspiring an …
Why Total Solar Eclipses Are So Rare
The solar eclipse that will cross the continental U.S. this Aug. 21 will attract a huge audience — and rightly so. The millions of people …
How One of the World’s Oldest Human Ancestors Died
The world’s best-known human ancestor fossil—widely known as Lucy—likely died following a fall from a tree, according to new research. Scientists behind the study, published …
Renewable Energy Topped Fossil Fuels in New Generation for the First Time Last Year: Report
More than half of new power capacity added last year came from renewable energy sources like wind and solar power, beating fossil fuels for the …
Carbon Dioxide Is Approaching a Level That Hasn’t Been Seen In 50 Million Years, Study Says
Unchecked burning of fossil fuels could drive carbon dioxide in the atmosphere to levels unseen in 50 million years, according to a new study. Researchers …
What These 3.66 Million-Year-Old Footprints Tell Us About Our Human Ancestors
Newly discovered footprints of five human ancestors that roamed the Earth 3.66 million years ago suggest that members of the Australopithecus afarensis species may have …
Climate Change Deniers Have President Trump’s Ear. But Now They Want Results
The past eight years have not been kind to people who dispute that the climate is changing. Leading scientists strengthened the case that the earth …
What to Know About the Paris Climate Agreement
President Donald Trump has long threatened to pull the U.S. out of the Paris Climate Agreement. After making it a campaign promise, he’s wavered on …
Why Donald Trump’s Choice of RFK Jr. as Vaccine Czar Is a Terrible Idea
IDEAS Kluger is Editor at Large for TIME. There’s been a mesmerizing kind of destructive physics at play in the appointments Donald Trump has made …