Scientific American

Poor preparation and a failure to properly apply the coating may be just a few of the reasons why the Reflecting Pool’s new paint job appears to be peeling off

These radical new devices keep time using fluctuations in the energy states of an atom’s nucleus, rather than those of its electrons, which atomic clocks currently use to define the length of a second

Noether's work helped prove the conservation of energy in physics, a key foundation for Einstein's theory of relativity

Knowing what kind of tick bit you and where you got it can help inform next steps

Two people were the first to receive the therapy for a condition that damages the spinal cord and optic nerve

Fathers show changes in some of the same brain areas as mothers, but the effect of parenthood on dads isn’t nearly as well studied

The Trump administration wanted the surface of the Lincoln Memorial Reflecting Pool to be “American flag blue.” A water-treatment expert explains why the pool is still algal green and why the bloom could keep coming back

Start your morning with today’s Spellements. Create as many words as you can from our daily selection of letters—including one tied to recent science news. Play now.

Mars researchers are wrestling with the potential costs of a flashy new NASA mission to the Red Planet

This “extraordinary” event was likely caused by seismic waves bouncing off Earth’s core, researchers found

As temperatures rise, some creatures pick fights while others struggle to learn

The evidence is mounting: this interstellar visitor is even older and weirder than anyone thought

Billions of emerging insects will likely trigger predator population surges—but some species mysteriously opt out of such bounties

What’s going on with the Ebola outbreak, how the World Cup is dealing with rising temperatures, and how becoming a father can change your brain

This operation opens the door to treating more people living with HIV who have end-stage organ disease

Famed AI wins in Go let human players rethink their moves in a whole new way

Preliminary study finds that testosterone levels increase or stabilize in people taking GLP-1 medications

Construction of the Deep Synoptic Array is about to start in rural Nevada. It will reveal untold galaxies in stunning detail and help explain how they form and grow

The great American brain drain could define science for a generation

From tiny hamsters to giant salamanders, here are some of the most unusual examples of fatherhood across the animal kingdom

A galaxy appears to be missing the invisible substance thought to hold such objects together, further challenging long-held assumptions about how galaxies form

Influencers and ultra-rich people looking to extend their lifespan are trading tips and tricks on how to eke out extra years

People with “fearful” or “preoccupied” insecure attachment styles had more children, whereas securely attached people had fewer, according to a recent study

How did we get here?

From booed hydration breaks to cooling-gel vests, teams are trying everything to keep their players from overheating. Physiologists—and one World Cup team doctor—say feeling cooler is different than cooling the body

A new study captures how cork, wine and air interact over time

Some mathematicians have predicted when humanity’s downfall might occur—though the circumstances are unspecified

The first participant has been treated in a landmark clinical trial of cellular reprogramming, which aims to rejuvenate aging cells

Extremely curved spacetime can warp cause and effect, creating channels for backward communication

Mikhail Verbitsky was detained at an Armenian airport last Thursday on charges of inciting terrorism

Researchers have created the first high-resolution global map of the extent of one of Earth’s largest—and least visible—living networks

Dogs spontaneously aid struggling humans the way young children do—whereas cats wait until they stand to benefit

The fossilized remains of more than 450 whales have amassed along a 750-mile-long stretch of the Indian Ocean floor