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Humans couldn't survive outdoors on Mars for a number of reasons, including its extremely low temperatures. Scientists are studying ways to terraform the planet to make it more hospitable.

Humans Could Warm Up Mars for Space Travelers by Spraying Tiny Metal Rods Into Its Atmosphere

Researchers propose a new technique for making the Red Planet more habitable by engineering heat-trapping nanoparticles from Martian dust

At Mata Menge, researchers found a tiny adult upper arm bone that belonged to an individual who lived 700,000 years ago, shedding light on the origins of Homo floresiensis.

Fossils Shed New Light on Small 'Hobbit-Like' Humans That Lived on a Remote Island

Two teeth and a small adult arm bone found in Indonesia suggest the ancestors of Homo floresiensis were even shorter than scientists previously thought

Philipe Petit walks between the twin towers on August 7, 1974.

Philippe Petit Marks the 50th Anniversary of His World Trade Center Walk With a New High Wire Act

The 74-year-old French artist reflected on his stunt and balanced on a tightrope at two performances in Manhattan

NASA’s Boeing Crew Flight Test astronauts Butch Wilmore and Suni Williams on the International Space Station on June 13.

NASA Astronauts Launched on Eight-Day Mission Might Have to Remain on the ISS Until February

After technical issues on Boeing's Starliner spacecraft, the space agency says it's considering bringing the astronauts back to Earth on a SpaceX Crew Dragon instead

As evidenced by Gordon Parks' A Woman and Her Dog in the Harlem Section (1943), New York pets had evolved from hunting assistants to companions by the 20th century.

See Images of New Yorkers and Their Pets Across Three Centuries

An upcoming exhibition will trace the history of the city's domesticated dogs, cats, horses and other animals

Microwaves need to be cleaned regularly, just like other kitchen surfaces.

Your Microwave Is Teeming With Bacteria, Study Suggests

Researchers found thriving communities of microbes in microwave ovens used in home kitchens, shared spaces and laboratories

The Three Graces, Raphael, circa 1517-18

See Rare Italian Renaissance Drawings at Buckingham Palace

An upcoming exhibition will feature 160 sketches by Italian masters such as Leonardo da Vinci and Titian

The elephants are spending the summer in Newport, Rhode Island, before making their way to the Meatpacking District in New York City this fall.

Art Meets Science

A Herd of Life-Size Elephant Sculptures Is Marching Across America

Created by artists in India, the artworks are part of a larger effort to promote coexistence between humans and animals

A picture of Calhoun in a mouse utopia in 1970

Cool Finds

This Old Experiment With Mice Led to Bleak Predictions for Humanity’s Future

From the 1950s to the 1970s, researcher John Calhoun gave rodents unlimited food and studied their behavior in overcrowded conditions

An Australian sea lion captures video while swimming through an invertebrate reef habitat.

Scientists Enlist the Help of Sea Lions to Reveal a Unique View of the Ocean Floor

Australian researchers glued satellite-linked GPS cameras to the animals' backs to capture footage that could be vital to marine conservation efforts

Video footage captured by a remotely operated underwater vehicle shows the cable winch of the S.S. Dellwood, a 3,500-ton U.S. Army vessel that had been installing communication lines when it collided with a submerged rock pinnacle.

Unraveling the Mysteries of the Battle of Attu, the 'Forgotten Battle' of World War II

Underwater archaeologists discovered three shipwrecks submerged near the small Alaskan island, which was the site of one of the deadliest conflicts in the Pacific

Astronaut Buzz Aldrin, as photographed by Neil Armstrong on the surface of the moon during the Apollo 11 mission in 1969. Researchers looked at lunar soil samples collected during the Apollo missions for the new study.

Meteorite Strikes Are the Primary Creator of the Moon's Thin Atmosphere, Study Finds

Researchers examined lunar soil samples collected during the Apollo missions to determine which weathering processes contribute most to replenishing the moon's atmosphere

The anonymous sender secured the artifacts in foam cut-outs inside a cardboard flapjack box.

Cool Finds

The Mystery of the Bronze Age Ax Heads Mailed Anonymously to an Irish Museum Has Been Solved

A farmer stumbled upon the 4,000-year-old artifacts while working in his field in central Ireland

Fe (pictured with her mate) hatched two chicks this breeding season, bringing the total number of her known offspring to 42.

She's the Oldest Common Loon in the World. She Just Had Her 42nd Chick

Fe, who is at least 38 years old, initially rose to fame as one half of the "resident power couple" at Michigan's Seney National Wildlife Refuge

Banksy announced this mural featuring a goat on a ledge on August 5.

Banksy Unveils Two New Animal Murals in Two Days

One piece features a goat perched on a ledge, while the other shows two elephants in windows

The visible side of the moon.

Scientists Find Water Molecules in Lunar Rock Sample for the First Time

The samples from China's Chang'e 5 mission shed light on lunar resources that could be vital to future missions and habitations

Each of the Persian darics features an image of a crouched archer.

Cool Finds

Archaeologists Stumble Upon Ancient Pot of Gold Coins in Turkey

Researchers think the hoard, which dates to the fifth century B.C.E., may have been buried during a time of upheaval

The Step Pyramid stands more than 200 feet tall and is made from stones weighing more than 650 pounds. Some other researchers are not yet convinced by the idea that it was built using a hydraulics system.

Ancient Egyptians May Have Used Hydraulic Lift to Build Pyramid

Researchers propose that a system of water could have lifted heavy stones to the height necessary to construct the Step Pyramid

A rendering of Iván Argote's giant pigeon statue perched on top of the High Line

This 16-Foot-Tall Pigeon Sculpture Is Coming to New York City's High Line

Artist Iván Argote hopes the artwork, titled "Dinosaur," will inspire "attraction, seduction and fear"

A new study of giant danios (not pictured) suggests schools of fish save 79 percent more energy in turbulent conditions than fish swimming individually.

Swimming in Schools May Help Fish Save Energy in Turbulent Waters

A new study suggests schooling fish use up to 79 percent less energy in rough conditions than fish that swim alone

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