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

Tropical Storm Beta reached the coast of Texas on Monday night.

Out of Names, National Hurricane Center Calls New Storms by Greek Letters

This season is the second time ever that the list of 21 storm names has been exhausted

Researchers prepared meals made out of maize, wheat and venison every week for a year.

Millennia-Old Cookware May Be the Key to Recreating Ancient Cuisine

A year-long experiment's ingredients, tools and cleaning techniques imitated early culinary practices as closely as possible

The Climate Clock is on display in Manhattan's Union Square as part of the city's Climate Week.

Clock in New York Counts Down the Time Remaining to Avert Climate Disaster

The installation began its count down on September 17 with seven years, 103 days, 15 hours, 40 minutes and seven seconds

A man in California found the logbook in his closet and reached out to a student at Georgetown University to facilitate the donation.

A Newly Digitized Logbook Documents Life and Death on a Slave Trading Ship

The "Mary" departed Africa in mid-June 1796 with 142 enslaved men, women and children on board

Some animals eat the leaves, but the venomous spines are certainly enough to discourage humans from getting too close.

How Venomous Australian Stinging Trees Cause So Much Pain

The trees may look fuzzy, but they’re covered in tiny needles that can cause months of pain

The postage-stamp sized sample of amber contained 39 half-millimeter-long crustaceans called ostracods, including 31 of a new species.

Scientists Discover Oldest Sperm Yet Preserved in Amber

The longest sperm in the sample is one-third the body length of the creature that produced it

Devadatta (Daibadatta), appearance of evil spirits with supernatural arts shows an evildoer who holds sway over a variety of evil spirits.

You Can Now Explore 103 'Lost' Hokusai Drawings Online

Newly acquired by the British Museum, the trove of illustrations dates to 1829

Los Machos rock shelter and schematic rock art panel

Fingerprint Analysis Reveals New Insights on Prehistoric Rock Art's Creators

Study suggests an adult man and a juvenile girl crafted the red ocher paintings seen at Spain's Los Machos rock shelter

This cave bear probably lived between 22,000 and 39,500 years ago, and researchers hope to get a better estimate with closer study.

Ice Age Cave Bear Found Preserved in Permafrost on Siberian Island

According to preliminary analysis, the bear is between 22,000 and 39,500 years old

“The pandemic has, in almost every dimension, made inequity worse,” said Bill Gates during a press conference about the results of the Goalkeepers Report.

New Report Details Impacts of Covid-19 Pandemic on Global Health

The annual Gates Foundation report assesses global progress toward the United Nations’ Sustainable Development Goals

Film Still, My Neighbor Totoro (1988), Hayao Miyazaki

Movie Museum to Open With Show Honoring Japanese Filmmaker Hayao Miyazaki

The Academy Museum of Motion Pictures' inaugural exhibition debuts on April 30, 2021

Drone images show the location of a council circle found on an ancestral Wichita site in Kansas.

Drone Imaging Reveals Pre-Hispanic 'Great Settlement' Beneath Kansas Ranch

The 164-foot-wide earthwork is the sixth ancestral Wichita "council circle" discovered in the region

Storm Francis uncovered more petrified tree stumps in Wales' Cardigan Bay, 15 miles south of the sunken forest in Borth.

New Section of Petrified Forest Uncovered on Wales Beach After Storm

The petrified forest in Borth appears in a myth written in the oldest surviving Welsh manuscript

Researchers identified a "trench" previously dated to modern times as a 3,700-year-old fissure.

Did an Earthquake Topple This Ancient Canaanite Palace?

Excavations at Tel Kabri in Israel revealed physical evidence of a natural disaster

A research team surveyed the seafloor near Thwaites Glacier on the RV Nathaniel B Palmer in early 2019.

Mapping Technology Reveals Channels of Warm Water Under Florida-Sized Glacier

The new research will inform computer models of how quickly the glacier is melting

This painting depicts the night the Phoenix steamboat caught fire on Lake Champlain.

Lost Pieces of 19th-Century Steamboat Wreck Found in Vermont

Divers discovered the Phoenix's hull in 1978, but the vessel's wheels remained lost—until now

Bronze-tailed Comet (Polyonymus caroli) perched on a cactus in Peru.

Hummingbirds in the Andes Go to Chilly Extremes for a Good Night’s Sleep

The longer a bird spent in a state of torpor, the less body mass it lost overnight

The Meroe pyramids in northeastern Sudan sit about1,650 feet from the banks of the Nile. Now, the site's royal bath is at risk of damage from record flooding.

Record Flooding Threatens Millennia-Old Pyramids in Sudan

Rising water levels could damage ancient structures at Meroe and Nuri

Parasitic dodders use outgrowths called haustoria to leech water and nutrients from their host plants.

Parasitic Plant Waits for Host’s Signal Before Flowering

Dodders grow into tangled masses of leafless tendrils also called wizard’s net and strangleweed

All classes are free and open to the public.

Take Free, Online College Classes Featuring Anthony Fauci and Other Covid-19 Experts

MIT’s class includes live-streamed lectures on Tuesday mornings and Purdue's self-paced course offers a certificate in contact tracing

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