Theresa Machemer

Theresa Machemer is a freelance writer based in Washington DC. Her work has also appeared in National Geographic and SciShow. Website: tkmach.com

More than half of koalas admitted to Australia Zoo Wildlife Hospital are sick with chlamydia. 

Australia Begins Vaccinating Hundreds of Koalas Against Chlamydia in New Trial

The infection affects at least half of koalas living in southeast Queensland and New South Wales

While many white dwarfs are surrounded by the rocky debris of planets destroyed during their red giant phase, only a few have been found with planets intact.

This Jupiter-Like Planet Narrowly Survived the Death of Its Star

The discovery offers insight into what will happen to our solar system after the sun collapses

The researchers plan to to gather images, measurements and possibly samples of the meteorite, per CTV News. They are also asking residents near Golden to check for video, such as dash cam footage, from October 3 at 11:33 p.m. that may have captured a glimpse of the fireball. (Pictured: A shooting star streaks across a starry sky in British Columbia; image is not associated with the incident.)

Meteorite Crash-Landed in a Canada Woman's Bed While She Slept

Ruth Hamilton awoke unharmed when the fist-sized space rock landed on her pillows

Neurotoxins secreted by the algae Karenia brevis kill marine life including fish, dolphins and manatees

More Than 600 Tons of Dead Sea Life Wash Up on Florida Coast Amid Red Tide

Crews cleaned up nine tons of dead fish in just 24 hours after Tropical Storm Elsa pushed the fish toward shore

People lie on the ground to view the Perseid meteor shower in Rocky Mountain National Park in Colorado at an astronomy night event on August 12, 2018.

How to Watch the Perseid Meteor Shower

Known for its 'fireball' meteors, the Perseid shower began on July 14 and will peak in mid-August

Similar lunar and climate conditions led to increased flooding in 2015. Pictured, a car drives through high waters in Fort Lauderdale, Florida.

Moon's Wobbly Orbit and Rising Sea Levels Will Cause Record Flooding in the 2030s

Clusters of nuisance floods could have major impacts on businesses and public health

Via Getty: "An unofficial thermometer reads 133 degrees Fahrenheit at Furnace Creek Visitor Center on July 11, 2021 in Death Valley National Park, California."

Death Valley Records Hottest Average Temperature Over 24 Hours

The Stovepipe Wells weather station measured an average temperature of 118.1 degrees Fahrenheit on Sunday

Next, the Entomological Society’s Better Common Names project will put together working groups that include experts who study the species and people from the insect’s native regions to decide on a new name.

These Moths Will Be Renamed to Stop Use of an Ethnic Slur

The Entomological Society of America is taking suggestions to rename the insect previously called the 'gypsy moth'

A black widow spider hangs from its web.

Eight Fun Facts About Black Widows

The venomous spiders are nimble, secretive and dangerous

An undated photograph shows Wally Funk standing with a U.S. Air Force jet.

Trailblazing Pilot Wally Funk Will Go to Space 60 Years After Passing Her Astronaut Tests

Wally Funk, the youngest of the 'Mercury 13,' will join the inaugural crewed flight of Blue Origin’s New Shepard capsule

A researcher looks at Artemisia annua seedlings. The plant contains malaria-fighting compounds.

World Health Organization Certifies China as Malaria-Free

In the 1940s, the country recorded 30 million cases of malaria each year

Ancient DNA and proteins gathered from the specimen's bones and teeth revealed the presence of Yersinia pestis.

Oldest Strain of Plague Bacteria Found in 5,000-Year-Old Human Remains

Unlike the 'Black Death' in the 14th century, the ancient infection probably did not spread quickly between people

This transmission electron microscopic image shows the pandemic coronavirus SARS-CoV-2.

Over 20,000 Years Ago, a Coronavirus Epidemic Left Marks in Human DNA

The oldest modern coronavirus is about 820 years old, but humanity has been fighting similar viruses for millennia

CRISPR allows scientists to cut and insert small slices of DNA with precision, illustrated here.

Early Study Shows Promise of CRISPR Injection to Treat Rare Disease

Three people who received a high dose of the gene editing tool in a clinical study saw significant improvement in their condition

Trumpet players create about 2,500 aerosol particles per liter of air that flows through their instrument.

To Reduce Covid-19 Risks in Orchestras, Move Wind Instruments to the Sidelines

A study that simulated airflow and aerosol production in a concert hall suggests moving brass and woodwinds near air vents

Officials at the U.S. Centers for Disease Control and Prevention anticipate that Delta will become the dominant variant in the United States within the next few months.

Covid-19 Delta Variant Emerges as Primary Threat Around the World

A surge of cases in the United Kingdom suggests that Delta is the most transmissible variant yet identified

Like the newly-identified 2014 UN271, the NEOWISE comet pictured here is a long-period comet originating in the Oort Cloud.

Giant Comet From the Oort Cloud Will Pass by the Sun in 2031

Astronomers used about 40 observations of the object, which is called 2014 UN271, to estimate its size and orbit

Dried sea snot on the surface of the water can be so strong that seagulls can walk on it, and it can damage fishing boat motors.

Turkey Begins to Clean Smelly Sea Snot From Its Shores

The layer of marine mucilage threatens not only tourism and fishing boats but also creatures living in the Sea of Marmara

When a person uses the HiccAway to drink water, they have to suck about four times harder than if they were using a regular straw.

This Straw Is Designed to Instantly Cure Hiccups

The 'HiccAway' stopped cases of hiccups 92 percent of the time during an early trial

New genetic research suggests that the gray whale spotted off the coast of Namibia in 2013 originated in the western Pacific.

Gray Whale Breaks Migration Record With 16,700-Mile Journey

The whale, which is usually found in the northern Pacific Ocean, was spotted off Namibia in 2013

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