NASA’s Mars Ingenuity helicopter broke its own record

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. CNN — More than a year and a half after its first flight on Mars, the Ingenuity helicopter has set a new record. The little 4-pound (1.8-kilogram) chopper completed its 35th flight on December 3 … Read more

Oldest DNA sheds light on a 2 million-year-old ecosystem that has no modern parallel

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. CNN — A core of ice age sediment from northern Greenland has yielded the world’s oldest sequences of DNA. The 2 million-year-old DNA samples revealed the now largely lifeless polar region was once home to … Read more

Oldest DNA reveals life in Greenland 2 million years ago

NEW YORK (AP) — Scientists discovered the oldest known DNA and used it to reveal what life was like 2 million years ago in the northern tip of Greenland. Today, it’s a barren Arctic desert, but back then it was a lush landscape of trees and vegetation with an array of animals, even the now … Read more

Increased demand for ADHD medication is straining the US health-care system

Stories about attention deficit hyperactivity disorder, or ADHD, have been having a resurgence in the social media zeitgeist the past several years, and it may be leading more people to seek out a diagnosis for the condition. “A lot of my patients would hold up their phone to the camera and be like, ‘Here’s this … Read more

Data highlights ‘shocking’ extent of malnutrition

More than half of pre-school age children and over two-thirds of non-pregnant women of reproductive age worldwide have micronutrient deficiencies, according to the findings of a new scientific review published in The Lancet​. The pooled analysis of biomarker data showed 372 million preschool-aged children and 1.2 billion women aged 15-49 years are deficient in iron, … Read more

Plesiosaur elasmosaur found on Queensland property: Intact fossil of a 100-million-year-old marine reptile

She’s the Queensland outback property owner with a penchant for amateur palaeontology. But now Cassandra Prince, from the McKinlay area about 200km east of Mount Isa, has made a discovery that’s being compared to archeology’s famous Rosetta Stone. WATCH THE VIDEO ABOVE: How a Queensland property owner discovered a 100-million-year-old creature Watch the latest news … Read more

Why colds and flu viruses are more common in winter

Editor’s Note: Get inspired by a weekly roundup on living well, made simple. Sign up for CNN’s Life, But Better newsletter for information and tools designed to improve your well-being. CNN — A chill is in the air, and you all know what that means — it’s time for cold and flu season, when it … Read more

Hawaii volcano: State activates National Guard as lava from Mauna Loa slowly inches closer to critical highway

CNN — Officials in Hawaii have activated the state’s National Guard to help in the response to the eruption of Mauna Loawhose lava has been steadily oozing toward a critical highway for days. The fountains of lava that have been shooting from the volcano over the past week are not a threat to communities or … Read more

Hearing aids may lower your risk for cognitive decline and dementia, study finds

CNN — Hearing aids might be an important tool in the effort to prevent cognitive decline and dementia, according to a new study. Research has established that hearing loss in an important risk factor in developing dementia, but whether intervening with the hearing loss will also treat the progression of cognitive decline has been less … Read more

Ultraprocessed food may contribute to dementia, study says

Editor’s Note: Sign up for CNN’s Eat, But Better: Mediterranean Style. Our eight-part guide shows you a delicious expert-backed eating lifestyle that will boost your health for life. CNN — We all eat them — ultra-processed foods such as frozen pizza and ready-to-eat meals make our busy lives much easier. Besides, they are just darn … Read more