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Stories from Sara Hashemi

Image of the constellation Lupus taken by the LSST camera

‘The Greatest Cosmic Movie Ever Made’: The World’s Largest Digital Camera Begins a Historic, Decade-Long Survey of the Night Sky

After a year of testing, the Vera C. Rubin Observatory in Chile has started capturing data as part of the much-anticipated Legacy Survey of Space and Time

Bonobo male Kikongo making 'happy' grin faces at the Lola ya Bonobo Sanctuary, Democratic Republic of Congo, October 2010

Humans and Great Apes Giggle With a Similar Rhythm and Timing, Suggesting We Have Shared Our Style of Laughter for 15 Million Years

Understanding how laughter evolved can reveal the secrets of human speech

Large conical shatter cones within the Pilbara Craton, Western Australia

Scientists Double Down on Age of What Might Be Earth’s Oldest Impact Crater, Dating It, Again, at More Than Three Billion Years Old

Last year, geologists dated the crater in Western Australia at 3.47 billion years old, which was disputed by other experts. Now, they’ve revised the estimate to 3.02 billion years old—but some still aren’t convinced

An artist's rendition of the new species, Jian changmaensis, on the left attacking the early bird Gansus yumenensis

This Strange, Feathered Dinosaur May Have Glided Between Trees Like a Flying Squirrel to Hunt Birds 120 Million Years Ago

A fossil of the creature provides the first evidence that microraptors lived in what is now northwestern China. Its discovery might also solve an ancient murder mystery

Crystal containing thorium-229 atoms used in the European team's clock

The World’s First Nuclear Clocks Are Ticking, Opening a New Way to Investigate Dark Matter and Other Mysteries of Physics

Two independent teams of scientists have created the first functional clocks that can keep ultraprecise time using the nuclei of a radioactive element

A Heliconius melpomene butterfly feeding on pollen.

These Butterflies Can Live 25 Times Longer Than Their Relatives. They Might Provide Insights Into Healthy Aging in Humans

Their unusual diet of pollen—rather than nectar—might partially explain why members of the Heliconius genus live so long, up to nearly a year

The researchers tracked eye and body movements of larval zebrafish.

Fish and Humans Share Surprisingly Similar Sleep Habits, Including Daytime Naps

A recent study suggests that zebrafish have four sleep substates, just like humans do—and one of them is akin to an afternoon snooze

A coral reef in the southern Andaman Sea, in Southeast Asia

Scientists Identify Swaths of Coral Reefs That Might Be Able to Withstand Climate Change, Offering New Avenues for Conservation

New research has mapped more than 64,000 square miles where the crucial habitat seems to be somewhat protected from the impacts of the warming ocean

A city-dwelling male bowerbird near the structure that it built to woo mates, called a bower.

Male Bowerbirds in Australian Cities Are Turning Human Trash Into Treasure to Impress Potential Mates

Even rural birds prefer human-made objects, such as colored glass and wire, when given the choice between them and natural decorations, like leaves and shells, according to a new study

The southern lights curve above the Earth as the ISS orbited above the Indian Ocean southwest of Perth, Australia.

See a Stunning View of the Southern Lights Dancing Across the Earth Captured by a NASA Astronaut

Jessica Meir, commander of NASA’s SpaceX Crew-12 mission, shared photos and videos of a green aurora she shot while sheltering in a capsule outside the International Space Station

Animation showing the surface water temperature changing in the Pacific Ocean from January 1 through June 8.

The ‘Super’ El Niño Has Arrived. Here’s How It Might Affect the World’s Weather and Economy

The naturally occurring climate pattern, characterized by warm surface water in the Pacific Ocean, that has just started could be one of the strongest ever recorded, according to experts

Some tasks involved grabbing food in tricky situations.

Is Your Dog Right-Pawed or Left-Pawed? Here’s How to Figure It Out, According to a New Study

Researchers devised a series of tests to measure your furry friend’s laterality, which can be associated with behavior, emotion and cognition

A slice of the rare angrite meteorite NWA 12774 shows olivine crystal (green), a mineral rich in magnesium.

A Rare Meteorite Found in the Sahara Desert Offers Evidence of a Lost Protoplanet

Chemical signatures indicate the meteorite came from an early planet that met an untimely end during the formation of our solar system

The new species was named Microeledone galapagensis ​​​​​​in honor of the location where it was collected.

‘Cute Little Guy’: Scientists Discover a Tiny Blue Species of Octopus by the Galápagos Islands

The palm-size creature was spotted and collected during a research expedition more than a decade ago, but scientists have just identified it as a previously undescribed species

NASA’s X-59 quiet supersonic research aircraft

In a First, NASA’s Experimental X-59 Plane Flew Faster Than the Speed of Sound, Setting the Stage for ‘Quiet’ Supersonic Aircraft

The United States banned supersonic flights over its land in 1973 due to their ear-splitting sonic booms. Experts are building a plane that should travel at those speeds but create only gentle thumps

Composite image of evidence for wind blowing away from Sagittarius A*, with the black hole shown as a white dot in the center, cold gas in orange and X-ray data in blue. 

The Supermassive Black Hole at the Heart of Our Galaxy Seems to Be Blowing Wind—Just as Scientists Long Theorized

Scientists have been searching for evidence of this breeze since the 1970s. They’ve seen intense wind from other black holes, but they’ve struggled to observe the one at the Milky Way’s center

An artistic rendition of the MAVEN spacecraft orbiting Mars

NASA Officially Ends the MAVEN Mission Months After Losing Contact With the Mars Orbiter

The agency last heard from the spacecraft on December 6. Recovered fragmentary data suggest that MAVEN was spinning unexpectedly, hinting at a change in its trajectory and draining its batteries

Unlike metals such as iron and copper, gold doesn't easily tarnish. 

Glittering Gold Can Stay Shiny for Centuries. Scientists Say They’ve Figured Out Why the Precious Metal Is So Resistant to Tarnishing

When the metal is split, the atoms on its surface rearrange themselves into a very stable pattern that doesn’t easily react with oxygen in the air, a study suggests

An Aedes aegypti mosquito

Google Wants to Release 32 Million Mosquitoes in California and Florida. Here’s Why

The company is asking the U.S. Environmental Protection Agency for permission to release millions of sterilized mosquitoes in order to fight their disease-spreading counterparts

Two members of the Médecins Sans Frontières Ebola response team outside a hospital in the Democratic Republic of Congo

These Experimental Ebola Treatments and Vaccines Might Help Slow the Outbreak Spreading in Congo and Uganda, WHO Says

No approved therapeutics exist for the virus species causing the outbreak, which has been associated with more than 1,000 cases of Ebola. The World Health Organization has identified several therapeutics to test in clinical trials in the coming months

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