Christie's is well-known for selling expensive, one-of-a-kind items. However, its latest offering is literally "out of this world." On April 30, 2020, the British auction house announced that the fifth-largest chunk of the Moon — a 29-pound (13.5-kilogram) rock dubbed NWA 12691 — was being offered for private sale for a "reasonable' $2.5 million!...

The negative health impacts of plastic on both wildlife and humans have been well-documented. However, the versatile material, which is used for everything from grocery bags to drink bottles to food packaging, is hard to avoid. Experts estimate that of the 359 million tons of plastics produced annually worldwide, about 150–200 million tons end up in landfills or the environment. To make matters worse, the material derived from the small percentage of plastic that is recycled is of lower quality and can only be used a few times for items like clothing or carpets before it has to be discarded....

On April 29, 2020, Earth will get an intimidating visitor — a massive asteroid called 1998 OR2. Fortunately for us, the space rock, which experts believe will be the largest one to fly by our planet this year, will be following the strict COVID-19 pandemic regulations. 1998 OR2 will not only be zooming past Earth at a safe "social" space of about 3.9 million miles (6.3 million km), or about 16 times the distance between the Earth and the Moon, but it will also be wearing a "face mask."...

While the novel coronavirus is dangerous for everyone, it is particularly so for the first responders who are being exposed to the illness daily. In the US alone, almost 5,500 nurses, doctors, and other healthcare professionals have been infected with COVID-19. Of these, dozens have succumbed to the disease. Now, hospital workers worldwide may get some reprieve thanks to Spot, a semi-autonomous four-legged robot developed by Waltham, Massachusetts-based robotics company, Boston Dynamics....

NASA's ambitious plans to land humans on the Moon by 2024 just got one step closer to becoming a reality thanks to the first comprehensive map of our satellite's surface. Unveiled on April 23, 2020, the colorful 1:5,000,000-scale "Unified Geologic Map of the Moon" is the result of decades of painstaking work by scientists from the United States Geological Survey (USGS), NASA, and the Lunar and Planetary Institute....

Though considered a waste of time by some, sleep is essential for the health and wellbeing of humans. Over the years, researchers have found sleeping allows the body to repair and restore cells, get rid of irrelevant memories, and even help kids grow taller and obtain better grades. Now, it appears that snoozing for an average of 8 hours daily enables the brain to cleanse itself and get rid of harmful toxins....

The search for an Earth-like planet that can support life has led to the discovery of many strange worlds, including one with two suns, a lava land, and a shimmering "sapphire" planet. However, none are as extreme or as bizarre as WASP-76b, which boasts 4,352-degree Fahrenheit (2,400-degree Celsius) temperatures, wind gusts of over 10,000 mph, and a steady pelting of iron rain!...

On March 16, 2020, researchers aboard the Schmidt Ocean Institute's ship Falkor stumbled upon a beautiful *giant* Apolemia, a type of siphonophore, in the Indian Ocean off western Australia. The scientists are not sure of the exact length of the silly string-like creature, which was found in the Ningaloo Canyons at a depth of 2,070 feet (631 meters). However, based on the measurement of its outer ring by a laser-equipped drone, they estimate it was 150 feet (46 meters) long....

The orbital spacecrafts, landers, and rovers sent to Mars under NASA's Mars Exploration Program (MEP) have provided invaluable insights into the red planet's topography, climate, and natural resources. However, finding any evidence of life has proved elusive. Now, the discovery of microbial growth found inside ancient, cold oceanic crust in the middle of the South Pacific is giving scientists hope that the proof may already be with us — we just need to know where to look!...

After an extensive 14-year, $6.6 million restoration, Egypt's oldest pyramid was reopened to the public on March 5, 2020. Located in the Saqqara necropolis, northwest of the city of Memphis, the Pyramid of Djoser was built 4,700 years ago as a tomb for Pharaoh Djoser, the first king of the 3rd dynasty (2650–2575 BCE). The massive pyramidal funerary complex was neglected for centuries and almost on the verge of collapse before Egyptian officials finally decided to take action in 2006 and bring it back to its former glory....

On April 7, 2020, the skies will be lit up with a Super "Pink" Moon — the brightest and biggest full moon we will encounter all year! Though Earth's natural satellite promises to be spectacular, that night, those hoping for a pink hue will be disappointed. April's full moon gets its name from pink wildflowers called phlox that bloom in early spring. Though the moniker is misleading, it is undoubtedly better than the alternative nicknames, which include sprouting grass moon, fish moon, and hare moon!...

Drones have come a long way since their first iteration, which was unsteerable and lifted a mere two feet off the ground during its first flight, was unveiled by French inventor brothers Jacques and Louis Bréguet in 1907. Modern-day quadcopters can be programmed to fly autonomously at high altitudes for long distances, swim underwater, and now, thanks to some University of Zurich researchers, even play dodgeball!...

The COVID-19 pandemic has changed life as we knew it just a few weeks ago. Millions of people worldwide are now under mandatory or voluntary lockdowns. All public attractions, including museums and aquariums, are shuttered, and the usually crowded streets of popular tourist destinations are desolate. An unanticipated silver lining during these challenging times for humans is that many of the Earth's other inhabitants are finally getting a chance to leave their normal habitats and roam freely....

For most birds, nest-building entails creating a bowl-shaped receptacle of twigs and dry leaves. However, don't tell that to the common tailorbird (Orthotomus sutorius). The tiny birds, found in urban gardens across tropical ecosystems worldwide, go through extraordinary lengths to sew together a comfortable and safe home for their offspring....

On March 11, 2020, the World Health Organization (WHO) announced that the COVID-19 coronavirus global emergency is now a pandemic. The UN health agency urged countries worldwide to "double-down" on their efforts to curtail the spread of the infectious disease, which has swept into at least 114 countries and killed over 4,000 people in less than three months....

Though many single-celled lifeforms have evolved to survive without oxygen, multicellular organisms have always been believed to need it to live. Now, scientists in Tel Aviv, Israel, have found that Henneguya salminicola, a parasite, which spends its life attached to the muscle tissue of fish, has adapted to living without oxygen....

Celebrated annually on March 14, Pi ("π”) Day is a universal favorite with students and teachers. Though the American holiday, which honors the numerical constant representing the ratio of a circle's circumference to its diameter, typically begins with a classroom discussion of the symbol, it usually ends with a slice or two of delicious pie. The event is commemorated every March 14 because the irrational number, which continues infinitely without repetition or pattern, is widely recognized as 3.14....

Paleontologists have long determined that modern-day birds evolved from smaller members of the two-legged, meat-eating theropods, such as velociraptors. However, for many years, the only transitional fossil linking the two had been that of the archaeopteryx — a bird-dinosaur hybrid that lived on Earth about 150 million years ago, during the late Jurassic period....

Despite the extreme quarantine measures taken by Chinese officials to stem the spread of the 2019 Novel Coronvirus (COVID-19), or Wuhan virus, the infectious, flu-like affliction continues to spread worldwide at an unprecedented rate. As of March 2, 2020, there are more than 90,000 reported cases in at least 53 countries, with more than 3,000 deaths globally....

Since the beginning of 2020, the East African country of Kenya has been battling the nation's worst desert locust outbreak in over 70 years. The destructive swarms, some as big as three times the size of New York City — an estimated 192 billion insects — are eating their way through thousands of acres of crops and animal pastures, decimating livelihoods in the process. Even worse, the locusts, which arrived from neighboring Somalia and Ethiopia, are now spreading to other countries, including Uganda, South Sudan, Tanzania, and Congo....

Though it is now arid, the Urumaco region in Venezuela's Falcón State was once a mega wetland that was home to numerous colossal animal species. These included rodents the size of modern-day buffaloes and 10-foot (3-meter) tall carnivorous birds. The latest to join the list of the area's massive creatures is a giant turtle that was 100 times larger than its closest living relative, the Amazon river turtle, and about 1.5 times the size of the world's largest living turtle, the marine leatherback....

Need an extra day to catch up on sleep or to finish an assignment this month? Then you are in luck, because 2020 is a leap year, an event that occurs once every four years. This means that instead of the customary 365 days, the year will have 366 days. Since the extra day is tacked onto the shortest month of the year, February 2020 will have 29 days....

California's Yosemite National Park is home to numerous stunning waterfalls. However, from mid-to-late February each year, the unlikely star of the pristine preserve is Horsetail Fall — a small, nondescript waterfall that forms over the eastern edge of the park's famous vertical rock formation, El Capitan, every winter. That's because, during the two-week-period, the temporary 1,000-foot fall frequently transforms into a spectacular "firefall" for about ten minutes a day during sunset....

While jewelry crafted from gold can be gorgeous, even ardent fans will admit that wearing the heavy metal over long periods of time can get a little cumbersome and annoying. Now, researchers from Swiss university ETH Zurich have created a new form of lightweight gold that weighs five to ten times less than traditional 18-carat gold — which typically comprises 75 percent gold and 25 percent copper — but retains the same purity....