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Stories from Sara Hashemi

A juvenile spotted ratfish. These deep-sea fish are named for their long, rat-like tails.

This Deep-Sea Fish Has Teeth on Its Forehead—and It Uses Them for Sex

Researchers suggest the rows of pointed structures on the heads of spotted ratfish are true teeth, offering the first known example of teeth located outside the jaw

A solar flare with the Earth for scale.

Solar Flares May Be Way Hotter Than Researchers Previously Thought

Scientists recalculated the temperature of solar flares using modern data and new models

A new study examines how bees adapt to build honeycombs on top of various 3D-printed foundations.

Bees Manage to Build the Best Honeycombs, Even on Imperfect Foundations

In a new study, scientists tested how honeybees adapt to construct their hives on 3D-printed foundations of varying sizes

Bison graze near the north entrance of Yellowstone National Park in Gardiner, Montana.

Restoring Bison to Yellowstone Has ‘Reawakened’ the Ecosystem as the Large Animals Migrate, Study Suggests

An analysis of plant diversity and soil health across the bison migration corridor suggests free-roaming bison lead to more nutrient-rich plants

The James Webb Space Telescope, with data from the Atacama Large Millimeter/submillimeter Array, together captured the dusty core of the Butterfly Nebula.

See the Stunning Butterfly Nebula in a New Image From the James Webb Space Telescope

The observations offer an unprecedented look at the center of the nebula, which is shrouded in a band of dust

An artist's depiction of the newly discovered "quadruple system" within the Milky Way. In it, two brown dwarfs orbit each other at the right, and together, they orbit a pair of red dwarf stars at the left.

Astronomers Spot a Rare Quadruple Star System in the Milky Way, Shedding Light on Mysterious Brown Dwarfs

The discovery can help astronomers better understand these little-known objects nicknamed “failed stars”

An artist's reconstruction of what Spicomellus afer would have looked like.

Oldest Known Fossil of an Armored Ankylosaur Is ‘Far Weirder’ Than Paleontologists Expected

The 13-foot dinosaur, covered in long spikes fused into its bones, suggests ankylosaurs developed tail weapons 30 million years earlier than thought

The teeth specimens were collected from discarded teeth at the Sealife Oberhausen aquarium in Germany.

Sharks’ Teeth Could Suffer Damage as Ocean Acidification Intensifies, Study Suggests

Higher concentrations of carbon dioxide in the atmosphere are leading to a drop in ocean pH, a change that might eventually make it harder for sharks to eat their prey

An artist's rendition of CHIME and its Outriggers across North America localizing the radio burst.

Astronomers Spot the Brightest Fast Radio Burst Ever Detected and Observe Stars Around Its Origin for the First Time

Using two telescopes, scientists were able to pinpoint the location of the fleeting phenomenon with surprising accuracy

The American robin was among the birds most affected by light pollution.

Light Pollution Is Making Days Longer for Birds, Extending the Hours When They’ll Sing

A new study looked at millions of recordings of birdsong and found that some species in areas with more light pollution are active for almost an hour longer than average

A bottlenose dolphin is seen "bow riding," or swimming just in front of a humpback whale, potentially getting a boost from the wave created by the larger mammal.

Whales and Dolphins Interact More Often Than Scientists Thought, Engaging in Mutual Play, Study Suggests

Researchers analyzed nearly 200 videos and photographs documenting interactions between the various kinds of cetaceans

The khipu examined in the study, found to be made with a primary cord of human hair

A Lock of Braided Human Hair Could Change How We Think About Inca Society and Record-Keeping

The khipu knot-tying system was thought to have only been used by elites, but one artifact suggests commoners, too, knew how to use it

Researchers dissected nearly 500 post-mortem birds from five Australian species, including the rainbow lorikeet (species pictured above).

Sex Reversal Is More Common in Birds Than Previously Thought, Suggests Study of Australian Species

Researchers find that about 5 percent of birds studied have a mismatch between genetic and physical sex—including one male bird that seems to have laid an egg

Gouldian finches, endemic to northern Australia, are among the tropical birds that may be vulnerable to extreme heat.

Tropical Birds Are Struggling to Cope With Extreme Heat, Research Suggests

A first-of-its-kind data analysis links high temperatures caused by climate change to tropical bird population declines

This year, a nearly full moon will make observing the Perseids harder. Here, a meteor is seen on August 3, 2025, in Spruce Knob, West Virginia.

The Popular Perseid Meteor Shower Will Peak This Week—Here’s How to Watch, Despite a Bright Moon

A waning gibbous moon will impact viewing the shooting stars, but the famous meteor shower is still worth observing

The Hubble Space Telescope captured this image of comet 3I/ATLAS on July 21. 

See the Sharpest Image Yet of an Interstellar Comet Passing Through the Solar System

Data from the Hubble Space Telescope unveils new information about this mysterious visitor

Golden apple snails and humans have similar eyes with related structures. Understanding how the snails can regrow them could help scientists heal human eyes.

This Snail Can Regrow Its Eyes—and Understanding How May One Day Help Humans With Injuries

Researchers pinpointed a gene related to eye development in golden apple snails, which can regenerate amputated eyes within about a month

An illustration of E. coli. Scientists have been racing to shrink the genetic code of this bacterium.

Scientists Rewrite the Genetic Code of E. Coli, and It’s Drastically Different From Anything Found in Nature

The synthetic bacteria contain a shorter genetic code with 57 codons rather than 64, freeing up space for further edits that might lead to new drugs or virus-resistant microbes

Australia’s major skink (Bellatorias frerei) has evolved to combat snake venom with the same mutation found in honey badgers, according to a new study.

Scientists Discover Australian Lizards Have Mutations to Resist Snake Venom—and One Day, That Could Help Humans

A new study looking at how skinks have evolved to block venom from reaching their muscles could guide development of new antivenoms

The study found that regular exercise, along with other lifestyle changes, can slow cognitive decline in older adults.

Cognitive Decline Can Be Slowed Down With Lifestyle Changes, From Diet to Exercise and Social Time, New Study Suggests

A 2,100-participant clinical trial found that structured and self-guided lifestyle changes can improve cognitive capabilities in older, at-risk adults

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