Cosmology
‘The End of Everything’ explores the ways the universe could perish
As Katie Mack explains in The End of Everything, the universe’s demise could be disastrously violent or deadly calm.
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Cover Story
To save Appalachia’s endangered mussels, scientists hatched a bold plan
Biologists have just begun to learn whether their bold plan worked to save the golden riffleshell, a freshwater mussel teetering on the brink of extinction.
Reviews & Previews
Science Visualized
Neuroscience
A new 3-D map illuminates the ‘little brain’ within the heart
Microscopy and genetic studies yield a comprehensive map of the nerve cells found in the heart of a rat.
Notebook
Tech
Bubble-blowing drones may one day aid artificial pollination
Drones are too clumsy to rub pollen on flowers and not damage them. But blowing pollen-laden bubbles may help the machines be better pollinators.
Features
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How much space does nature need? 30 percent of the planet may not be enough
Nations are drafting a plan to protect 30 percent of Earth by 2030 to save biodiversity. The number reflects politics more than scientific consensus.
More Stories from the August 1, 2020 issue
- Earth
Two lightning megaflashes shattered distance and duration records
Satellite data show that the two extreme bolts, both appearing over South America, more than doubled the previous records.
- Science & Society
Real-life scientists inspire these comic book superheroes
Three scientists are publishing comics casting researchers as heroes, and hope the cartoon format and pared-down storyline can boost science literacy.
- Earth
Earth’s annual e-waste could grow to 75 million metric tons by 2030
Unwanted electronic waste is piling up rapidly around the globe, while collection and recycling efforts are failing to keep pace, a new report shows.
- Space
LIGO and Virgo detected a collision between a black hole and a mystery object
The first evidence of an object more massive than any neutron star and more lightweight than any black hole has astronomers wondering what it is.
- Space
Colliding black holes may have created a surprising flare of light
A flare-up after a gravitational wave outburst may be the first sighting of light from colliding black holes.
- Space
A newfound exoplanet may be the exposed core of a gas giant
A planet about 734 light-years away could be a former gas giant that lost its atmosphere or a failed giant that never finished growing.
- Health & Medicine
These cells slow an immune response. Derailing them could help fight tumors
Immune therapies don’t work for a lot of cancer patients. Some researchers are enhancing these treatments with drugs that stymie suppressor cells.
- Particle Physics
Physicists spot a new class of neutrinos from the sun
Researchers with the Borexino experiment in Italy have detected neutrinos produced in the secondary fusion process taking place in the sun’s core.
- Life
Bizarre caecilians may be the only amphibians with venomous bites
Microscope and chemical analyses suggest that, like snakes, caecilians have glands near their teeth that secrete venom.
- Life
Fish eggs can hatch after being eaten and pooped out by ducks
In the lab, a few carp eggs survived and even hatched after being pooped out by ducks. The finding may help explain how fish reach isolated waterways.
- Particle Physics
This is the first known particle with four of the same kind of quark
A weird four-quark particle could be a unique testing ground for the strong force that governs how quarks stick together.
- Neuroscience
Boosting a liver protein may mimic the brain benefits of exercise
Finding that liver-made proteins influence the brain may advance the quest for an “exercise pill” that can deliver the benefits of physical activity.
- Genetics
South Americans may have traveled to Polynesia 800 years ago
DNA analyses suggest that Indigenous people from South America had a role in the early peopling of Polynesia.
- Health & Medicine
Strokes and mental state changes hint at how COVID-19 harms the brain
In a group of people severely ill from the coronavirus, strokes, psychosis, depression and other brain-related changes come as complications.
- Life
Here’s how flying snakes stay aloft
High-speed cameras show that paradise tree snakes keep from tumbling as they glide through the sky by undulating their bodies.
- Humans
Underwater caves once hosted the Americas’ oldest known ochre mines
Now-submerged chambers in Mexico’s Yucatán Peninsula contain ancient evidence of extensive red ochre removal as early as 12,000 years ago.
- Planetary Science
Some exoplanets may be covered in weird water that’s between liquid and gas
“Supercritical” water, a corrosive substance used to break down toxic waste on Earth, coats some small worlds around other stars, simulations suggest.
- Astronomy
50 years ago, Mauna Kea opened for astronomy. Controversy continues
Current plans to build a new telescope on the volcano sparked the latest conflict.
