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Astronomers have long suspected that celestial bodies from other solar systems traverse through ours frequently. However, it is only recently that they have been able to identify some of these interstellar objects. The first, a remarkably fast-moving comet dubbed 'Oumuamua, was already making its way back home by the time it was spotted in October 2017, giving scientists little chance to study it in detail. Now, thanks to the sharp eyes of an amateur astronomer in Crimea, scientists will get a second chance to investigate similar comets with C/2019 Q4 (Borisov), which is currently making its way to our solar system....

On September 24, 2019, Nancy Pelosi, the Speaker of the US House of Representatives (House), launched a formal impeachment inquiry into President Donald Trump. The investigation was triggered by allegations that Mr. Trump had asked Ukrainian President Volodymyr Zelensky to look into the business ties of 2020 Democratic presidential candidate Joe Biden's son, Hunter. Allegedly, in order to persuade Zelensky to agree, the US president withheld federal military aid from Ukraine. So how will the impeachment process work, and what are its potential long-term implications for the president? Read on . . ....

A female walrus demonstrated the lengths moms — animal and human alike — will go in order to protect their offspring when she sank a Russian research boat that came close to her calves. The incident occurred on September 18, 2019, when a team of sailors and scientists from Russia's Northern Fleet and Geographical Society were sailing to Wilczek Island in the Arctic Ocean....

Shipworms, which munch through wood and help release essential nutrient stored within it, are incredibly beneficial for other marine animals. However, the saltwater bivalve mollusks have been known to sink boats and cause extensive damage to docks, piers, and other wooden structures. Now, researchers have uncovered a shipworm species of a different kind — one that has the potential to change the course of a river by gnawing through its limestone bedrock!...

With self-driving vehicle technology rapidly advancing, many companies are turning to autonomous robots for the final leg — the so-called last mile — of the delivery process, from the store or local distribution center to the customer. The latest to join the trend is e-commerce giant Amazon. Following a successful eight-month test run in Snohomish County, Washington, the company's Scout robots have been making the rounds of Irvine, California, since August 6, 2019....

An estimated four million people worldwide took to the streets on Friday, September 20, 2019, for the youth-instigated Global Climate Strike. The young protestors, and their adult supporters, marched along city streets or lobbied outside government buildings to urge leaders to take aggressive action against climate change. Some US companies, such as Ben & Jerry's, Etsy, and The North Face, also joined in the effort by closing their stores to allow employees to participate. Believed to be the largest-ever climate change rally, the September 20 strike will be followed by a similar event on September 27....

Princess Louisa Inlet, a fjord located 60 miles from Vancouver, Canada, is a spectacular stretch of remote wilderness. Accessible only by boat or plane, the 3.7-mile-long (6-kilometers) area is popular with outdoor enthusiasts who flock to admire the 120-foot-high Chatterbox Falls or to hike the numerous trails to other scenic features. Its dense forests are home to a wide variety of wildlife, including grizzly bears, mountain goats, and eagles. Now, thanks to an unprecedented crowdfunding campaign, the pristine land will be preserved forever for future generations to enjoy....

Fans of Scotland's mythical Loch Ness Monster, or Nessie, will be thrilled by the discovery of the remains of a massive look-alike elasmosaurus. Measuring 36 feet long (11 meters), from snout to tail, it is the largest specimen of the four-flippered sea giants — which inhabited Earth between 55 to 66 million years ago — on record....

When the curators at the National Gallery in London, England, applied imaging technology to Leonardo da Vinci's famous painting, The Virgin of the Rocks, they fully expected to see a sketch underneath. What they had not anticipated, however, was a drawing that was substantially different from the final masterpiece....

Swimming across the English Channel — the 21-mile-long body of water separating southern England from northern France — is no easy feat. In addition to the strong ocean currents, swimmers also have to endure temperatures that can range from a chilly 64 degrees Fahrenheit (18 degrees Celsius) to a near-freezing 42 degrees Fahrenheit (6 degrees Celsius). However, don't tell that to Sarah Thomas. The 37-year-old American recently became the first person ever to swim across the length of the treacherous stretch of water, which links the southern part of the North Sea to the Atlantic Ocean, not once, but four times non-stop!...

Bees are essential for the pollination of flowers, fruits, and vegetables. Sadly, over the past 15 years, the global population of the industrious insects has been declining at alarming rates. Bee Informed Partnership, a collaboration of American insect experts, estimates that between April 1, 2018, and April 1, 2019, the country's managed bee population decreased by 40.7 percent. The numbers are as dire worldwide. Now, some cities in the Netherlands are coming up with innovative ideas to help stem the population decline of these all-important insects....

Sending a distress message in a bottle would not typically be considered a sensible strategy. However, it miraculously worked for three hikers from Morro Bay, California, who found themselves stranded atop a 40-foot waterfall at the Pfeiffer Big Sur State Park on California's Central Coast....

Though famous American singer-songwriter Taylor Swift may consider 13 her lucky number, millions of people worldwide do not share the sentiment. Things get even worse for the superstitious when the date, as is going to happen this week, coincides with a Friday. While no one knows for sure how Friday the 13th got its fearful reputation, experts have some theories....

Though Bianca Andreescu was expected to be a formidable opponent, it was Serena Williams who was favored to win the US Open Tennis Championships finals in New York City on September 7, 2019. The 37-year-old US tennis phenom is after all an experienced veteran, with 23 Grand Slam titles to her name. Meanwhile, prior to 2019, her 19-year-old challenger had never even reached the finals of the four prestigious tournaments — the US Open, the Australian Open, Wimbledon and the French Open — that comprise the Grand Slam. But in a true-life underdog story, Bianca managed to oust Serena with a resounding 6-3, 7-5 victory in less than two hours....

The Atlantic hurricane season, which spans from June 1 to November 30, had been relatively calm this year, with just one major storm in July. That changed at the end of August, when Dorian, a Category 5 hurricane, came screaming through, leaving a trail of destruction all the way from the US Virgin Islands to the Bahamas and the US and Canadian east coasts....

On normal days, Buñol, located 30 miles from Valencia, Spain has a population of about 9,000. However, that changes on the last Wednesday of August, when tens of thousands of revelers descend upon the charming town to participate in the world's largest food fight. Called La Tomatina, it entails party-goers throwing tomatoes at each other for an entire hour!...

Russia's Soyuz spacecraft, which has been ferrying all astronauts to and from the International Space Station (ISS) since NASA retired the space shuttle in 2011, typically carries a crew of three. However, the MS-14 capsule that blasted off from a Russian spaceport in southern Kazakhstan on August 22, 2019, had just one passenger — a humanoid robot named Skybot F-850....

When Leigh Love stumbled upon a bird's leg bone at the Waipara Greensand fossil site in New Zealand's South Island in 2018, he suspected that they might be those of an ancient penguin. With four other species discovered there, the area has been a hotbed for penguin remains from the Paleocene Epoch, which spanned between 66 million and 55 million years ago. What the amateur paleontologist did not realize was that the fossil belonged to the largest, hitherto unknown, penguin species ever found....

Once considered America's national pastime, baseball is on a decline, especially among young Americans who seem to prefer more active sports such as football and basketball. But in Finland, the game's popularity is at an all-time high, especially in rural areas, where it is a favorite in schools and fans in stadiums often outnumber the local population. The reason? Pesäpallo, the Finnish version of baseball, is a faster-paced game that is exciting enough to keep fans of all ages at the edge of their seats!...

Artists are continually striving to find innovative ways to showcase their talent. Some, like Jackson Pollock, produce masterpieces by flinging pigments across the canvas, while others, like Iris Scott, paint with their bare fingers. Turkish artist Garip Ay has gained worldwide fame by adopting Ebru, an ancient technique that allows him to create stunning paintings on water....

If you have spent any time observing seals at the zoo or in the wild, you may have seen the mammals swimming, walking, clapping, and even "barking" at one another. Now, scientists in Scotland have proved that with some vocal training, and the right incentive, the talented animals are also capable of mimicking the human language, accomplishing impressive tasks such as "singing" popular tunes like "Twinkle, Twinkle Little Star."...

It is not uncommon for human-generated blazes — lit to clear the land out for farming or ranching — in the Amazon rainforest to get out of control. However, this year, the number of wildfires has been extraordinarily high. Brazil's National Institute for Space Research (INPE) has recorded over 73,000 fires in the world's largest tropical rainforest between January and August 2019, 2,500 of which are currently active. This is the highest number observed since the agency began keeping records in 2013, and an astounding 80 percent more than during the first eight months of 2018....

Always wished you could savor your ice cream slowly, without the treat turning into a sticky, melted mess? Then you may want to stop by the Republic of Booza in Brooklyn, New York, for a scoop or two of booza — a stretchy, taffy-like ice-cream that not only lasts longer but is also best consumed twirled around a fork!...

In addition to their myriad other responsibilities, the brave Mars pioneers will also have to be ready to deal with all kinds of medical emergencies. Some ailments, such as common colds and headaches, may be easy to tackle with medication. To help them with more serious issues, like severe skin burns or bone fractures, scientists from the Dresden University of Technology (TUD) have developed a 3-D bioprinter capable of producing human tissue in space....