Mystery About 'Alien Call' Heard From Mariana Trench Now Solved
Researchers have finally solved the issue of the eerie sounds heard from the deepest part of the earth's oceans. The mysterious noise heard from Mariana Trench includes deep moans measured at 38 hertz a metallic sound as high as 8,000 hertz. Hatfield Marine Science Centre scientists named the sound as "Western Pacific Biotwang (WPB)."
According to a report, a dwarf minke whale might be responsible for the so-called "alien call." The sound was recorded by the National Oceanic and Atmospheric Administration (NOAA) in July 2015 when the scientists used a microphone to capture sounds 36,000 feet into the Mariana Trench in 3 weeks.
"The ambient sound field is dominated by the sound of earthquakes, both near and far, as well as distinct moans of baleen whales, and the clamor of a category 4 typhoon that just happened to pass overhead," NOAA said.
In a study published in the Journal of the Acoustical Society of America, researchers explained it might be a new type of baleen whale call. Baleen whales are found in almost all oceans worldwide, whether in cold polar seas or in tropical zones.
"It's very distinct, with all these crazy parts," Sharon Nieukirk, a researcher at the Oregon State University said. "The low-frequency moaning part is typical of baleen whales, and it's that kind of twangy sound that makes it really unique. We don't find many new baleen whale calls."
She also explained that the WPB is closely similar to the sound created by dwarf minke whales found on the Great Barrier Reef. Minke whales are a type of baleen whales which produce "regionally specific calls."
However, Nieukirk added that they don't know much about minke whale distribution at low latitudes. Minke whales are the smallest species of baleen whales and they are not seen much at the surface. They live in areas with high seas like the Mariana Trench which makes them difficult to observe. The researchers are now planning to study more about the nature of the call.
"Now that we've published these data, we hope researchers can identify this call in past and future data, and ultimately we should be able to pin down the source of the sound," Nieukirk said
Mysterious Crater Found In East Antartica Proves Extreme Climate Change
A group of scientists has set sail to the East Antartica to study the melting of the Totten Glacier. According to the results of their exploration, the ice shelf is melting rapidly due to the warmer sea water surrounding it.
Chandler Bing Can Help Detect Early Onset Of Alzheimer’s
Alzheimer’s disease remains to be one of the most interesting and mindboggling topics in mental health. One study suggests that people who cannot get sarcasm constantly may be candidates for this disease.
Drug To Cure Ovarian Cancer Gets FDA Approval
New drug called Rubraca gets a fast FDA approval for its promising benefits to ovarian cancer patients.
Mariana Trench: Scientists Find Contamination in World’s Deepest Ocean
Scientists had earlier believed that the Mariana Trench and the Kermadec Trench of the Pacific Ocean were insulated from human influences because they happen to be the deepest parts of the ocean at over 10 kilometers deep and at a distance of 7,000 kilometers apart from each other.
James Cameron Donates Deepsea Challenger To Science
Scientists are looking for new ways to explore the planet, including those initiated by a Hollywood director.
MORE IN ITECHPOST
Best Traveling Apps for Smartphones
Apps for mobile devices led personal, independent traveling to a new level. Nowadays, your pocket can easily fit all the possibilities of a small tourism agency. GPS, maps, currency calculators, city guides, dictionaries, hotel search services, etc. The right set of apps for traveling helps in planning your journeys and saving time, money, and nerves while you sit in a café or taxi, or lie in bed.
How Do Personal Emergency Response Systems Work?
Personal emergency response systems, known as PERS for short, are systems that help people to raise the alarm and get immediate help when a medical or personal emergency occurs. They are ideal for older people and anyone with a mobility issue or an injury or illness that can cause falls.
The 9 Most Popular (And Fun) Internet Games of 2019
Are you bored of board games? What are the most popular internet games from this year? These nine are popular for a reason. Check 'em out!