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

The Hanasaari B power plant was commissioned in 1974 as a coal-fired power plant.

Helsinki Power Plant May Be Transformed Into Arts and Culture Center

The Finnish capital plans to decommission the Hanasaari power plant by 2024. Could it be the next Tate Modern?

In Vacaville, California, the Hennessey Fire ignited on Tuesday afternoon and "nearly doubled in size in a matter of minutes," according to Getty.

In California, More Acres Have Burned in the 2020 Fire Season Than in All of 2019

Over 500,000 acres have burned in California, sparked by dry lightning storms and an extreme heat wave

Archaeologists with the South Carolina Battlefield Preservation Trust found Tar Bluff battlefield with the help of a British officer's hand-drawn map.

Archaeologists Locate the South Carolina Battlefield Where Patriot John Laurens Died

The Revolutionary War officer was notoriously reckless and fought alongside George Washington and Marquis de Lafayette

In spring, fur farms in the United States had raised biosecurity measures by increasing the use of personal protective equipment like masks, gloves and rubber boots.

Covid-19 Reaches Mink Farms in Utah

Veterinarians have confirmed five cases in U.S. minks, but suspect the actual number is higher

A statue of 20th-century educator Nettie Depp will be installed in the Kentucky State Capitol next August.

Kentucky State Capitol Will Unveil Its First Statue Honoring a Woman

The sculpture depicts Nettie Depp, who championed public education in the early 20th century

Some groups stuck together for four years.

Grey Reef Sharks Hunt With the Same Group for Years—but Don't Call Them Friends

They're more like reef proximity associates

George IV commissioned architect John Nash to design Buckingham Palace's picture gallery as a home for his art collection.

Buckingham Palace's Art Collection to Be Exhibited in Public Gallery for First Time

The 65 works set to go on view include masterpieces by Rembrandt, Vermeer and Titian

The first infestation of spotted lanternflies in the U.S. was found in Berks County, Pennsylvania in 2014.

Invasive Spotted Lanternflies Reach Eight New Jersey Counties

The insect is an 'excellent hitchhiker,' says the New Jersey Department of Agriculture

In April 2019, a devastating fire destroyed Notre-Dame Cathedral's iconic spire.

In Paris, Virtual Reality Experience Shows Notre-Dame Before and After 2019 Fire

The 18-minute documentary features footage of usually inaccessible spots, including the attic and sacristy

Post-tropical cyclone Kyle was identified as a tropical storm on August 14 and it has since dissipated.

In a New Record, 11 Named Storms Have Already Formed in the Atlantic

Forecasters now estimate that 2020’s Atlantic hurricane season could see up to 25 named storms

Thousands of volunteers helped transcribe the Library of Congress' Lincoln letters.

Read Thousands of Abraham Lincoln's Newly Transcribed Letters Online

The missives, preserved by the Library of Congress, include notes to and from the beloved president

Viburnum titus is a common landscaping plant in Europe and the United States, but its blue fruits hadn't been closely studied until now.

Structural Complexity Gives This Fruit Its Metallic Blue Color

The super blue viburnum fruit gets its hue not just from blue pigment, but from the structure of its fat

This orthographic projection shows Ceres, centered on Occator crater and the brightest spot on Ceres.

NASA Mission Shows Dwarf Planet Ceres Is Geologically Active

Seven studies of data from the Dawn spacecraft’s final orbit makes the case for liquid under the dwarf planet's surface

Archaeologists have excavated about one-third of the 66-foot wide timber circle, shown on the right. The other portion of this composite image draws on an aerial photograph to give a sense of the structure's size.

Stonehenge-Like 'Timber Circles' Found in Portugal

The 66-foot wide circle of wooden posts predates the British monument by several hundred years

Physicist Avinash Kumar of Simon Fraser University stands beside the Mpemba effect apparatus.

The Physics of Why Hot Water Sometimes Freezes Faster Than Cold Water

For decades, physicists have debated whether the phenomenon exists and how to study it

Amateur treasure hunter Mariusz Stepien found the cache of Bronze Age artifacts (including these pieces of a horse harness) while searching a field with a metal detector.

Rare Bronze Age Sword, Horse Harness Unearthed in Scotland

The "nationally significant" trove of 3,000-year-old artifacts also includes a pendant, rings and chariot wheel axle caps

It's all about identifying cracks—microcracks, in this case—in the armor.

The Scientific Reason Why Razors Don't Stay Sharp for Long

When soft hair hits the blade’s weak points, it causes the metal to chip apart

The pairing of Francisco de Zurbarán’s The Martyrdom of Saint Serapion and Jan Asselijn’s The Threatened Swan in the Rijksmuseum's "Rembrandt and Velazquez" exhibition inspired MosAIc's creators.

How an Algorithm Draws Unexpected Connections Between Works of Art

Given a starting image, the artificial intelligence can identify objects that match its colors, textures and themes

Sipson Island in Cape Cod, Massachusetts, opened to the public on July 25.

Cape Cod Island Opens to the Public for the First Time in 300 Years

When Sipson Island went on the luxury real estate market in 2018, locals saw an opportunity for conservation

Bogs are perhaps best known for preserving prehistoric human remains. One of the most famous examples of these so-called "bog bodies" is Tollund Man.

Study Suggests Bones Preserved in Peat Bogs May Be at Risk

Per the paper, archaeologists need to act quickly to recover organic material trapped in the wetlands before specimens degrade

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