Though it has been retired since 2018, the observations made by NASA's Kepler Space Telescope during its decade-long mission continue to allow researchers to identify new worlds in our galaxy. The latest to make headlines is an Earth-sized exoplanet that rotates around its dwarf star in just 3.14 days. The similarity to the close approximation of the mathematical constant pi — the ratio between a circle's circumference and its diameter — has earned the alien world the nickname "Pi planet."
Columbus Day, which is commemorated annually on the second Monday in October, has been a US federal holiday since 1934. However, the celebration, honoring Christopher Columbus's arrival to the Americas, has always been somewhat controversial due to the European settlers' brutal treatment of the Native American people. It has also been argued that the indigenous people had already "discovered" America by the time Columbus landed onto the Bahamian island he named San Salvador on October 12, 1492.
Killer whales, or orcas, are the largest members of the oceanic dolphin family. While the intelligent mammals, which hunt in large pods, are known for their orchestrated attacks on unsuspecting marine animals, they have never posed a threat to humans. However, since late July, the normally social animals have been intentionally attacking sailboats off the coasts of Spain and Portugal. The unusual hostility is puzzling scientists worldwide.
In a normal world, boarding an airplane that circles in the air for a few hours before returning to the same airport would have been considered laughable. However, in the COVID-19 pandemic era, where international travel has ground to a halt, "flights to nowhere," or "scenic flights," are becoming increasingly popular with homebound consumers eager to get on an airplane.
Human hair is about 50 times softer than a razor blade, which is made using heat-hardened stainless steel and often reinforced with diamond-like carbon. Yet, a few wisps of hair are powerful enough to dull a blade's sharpness within a few weeks of use. To understand how this impressive feat occurs, a team of researchers from the Massachusetts Institute of Technology (MIT) decided to take a closer look at what happens when the sharp edge of a blade slices through human hair.
A rat may seem like an unlikely candidate to receive a gold medal for bravery and devotion to duty. However, six-year-old African giant pouched rat Magawa, who was honored with British Veterinary Charity PDSA's highest animal award on September 25, 2020, is no ordinary rodent. Over the past five years, the "HeroRAT" has saved hundreds of lives by detecting 39 landmines and 28 unexploded items in Cambodia.
Faced with a declining population and shrinking workforce, Japan has been increasingly turning to robots for help. Over the years, the androids have been deployed to perform a large number of human tasks, including building products and providing care and companionship for the elderly. The latest addition to the Japanese "workforce" may be Model-T. This seven-foot-tall robot is currently undergoing trials restocking sandwiches, drinks, and ready meals on shelves at select locations of local convenience store chains Lawson and FamilyMart.
Researchers have long been aware of the presence of rust, or hematite, on Mars caused by the chemical reaction between the iron ore on the planet's surface and water and oxygen from the ancient past. However, they had never expected to find the reddish-brown iron oxide on the Moon, given that our satellite is missing two of the three key components — moisture and oxygen. Now, a new study, based on recent data from India's Chandrayaan-1 Moon-orbiting spacecraft, suggests that the Moon is displaying signs of rust and it may be Earth's fault.