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There’s heartbreak in this issue. Science News investigates different facets of the ongoing opioid epidemic in the United States.
Today’s opioids stop pain — but they’re also dangerous. Scientists are hunting for replacements.
A surge in opioid-exposed newborns has U.S. doctors revamping treatments and focusing on families.
A new exoskeleton helps people prone to falling stay on their feet.
A fossil embryo known as Baby Louie has been identified as a new species of dinosaur called Beibeilong sinensis.
Physicists demonstrate the possibility of a “naked” singularity in curved space.
Compared with Neptune, HAT-P-26b’s atmosphere has few heavy elements, suggesting it formed differently than the ice giants in Earth’s solar system.
A 36 million-year-old whale fossil bridges the gap between ancient toothy predators and modern filter-feeding baleen whales.
Source tumors may already contain the mutations that drive aggressive cancer spread.
A new study lays out several rules to successfully enter gram-negative bacteria, which could lead to the development of sorely needed antibiotics.
An experimental "exercise in a pill" increases running endurance in mice before they step foot on a treadmill.
As an alternative to genetically modified mosquitoes, Florida skeeter police are testing one of two strategies that use bacteria to meddle with insect sex lives.
Human noise stretches into the wilderness.
A new deepwater laser tool measures the carbon-filtering power of snot nets created by little-known sea animals called giant larvaceans.
EEG recordings can help indicate whether a newborn baby is in pain, a preliminary study suggests.
Antimatter in cosmic rays could be a sign of dark matter.
South African species Homo naledi is much younger than previously thought.
Molecular oxygen detected around comet 67P may not be a relic of the solar system’s birth. Instead, it may be generated by interactions of water, the solar wind and the comet’s surface.
At first, ophthalmologist Xu Wang thought her experiment had failed. But instead, she revealed a new role for the breast cancer drug tamoxifen — protection from eye injury.
Ancient sea scorpion used a flexible, swordlike tail to hack at prey and defend against predators.
People can see and hear meteors simultaneously because of radio waves produced by the descending space rocks.
Scientists have worried about antibiotic resistance for decades.
Small ice particles called ice-lollies, because of their lollipop-like appearance, can form in clouds.
Reviews & Previews
Backyard Worlds: Planet 9, a citizen science project, lets space enthusiasts search for undiscovered objects in the sky, including a hypothesized planet at the far reaches of the solar system.
Letters to the Editor
Readers sent feedback on under-ice greenhouses in the Arctic, the Martian atmosphere and more.
Simulations of HAT-P 7b’s magnetic field give clues to why the exoplanet’s winds blow both east and west.