Category: Science
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Brazilian study warns of rapid melting of polar ice caps
A study titled Planeta em Degelo, based on new data from the Brazilian Antarctic Program (Proantar), warns of the acceleration of glacier melting, which totaled 9,179 gigatons since 1976, threatening coastal cities mainly. Almost all of this amount (98%) reached the oceans in liquid form since 1990, and 41% only between 2015 and 2024. In…
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Peer Pressure Can Make This Clownfish Change Its Stripes
In the Disney movie Finding Nemo, the clownfish Marlin worries that his son Nemo might have suffered an injury and asks him to count how many stripes he has. Nemo gets the answer right — three. But in another species, the tomato clownfish, all but one of those stripes disappear as the young fish mature.…
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Peer pressure can make this clownfish change its stripes
In Disney’s Finding Nemo, the clownfish Marlin worries that his son Nemo might be hurt and asks him to count how many stripes he has. Nemo gets the answer right: three. But in another species, the tomato clownfish, all the stripes except one disappear as the young fish mature. Now, in an article published in…
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NASA Plans to Launch Four Astronauts to the Moon on Artemis II Mission on March 6
NASA could launch four astronauts on a mission to orbit the Moon as early as March 6. That’s the launch date the space agency is working toward after a successful fueling test of its 98-meter-tall giant lunar rocket, which is positioned on the launch pad at Kennedy Space Center in Florida. “This is really becoming…
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NASA Targets March 6 to Launch 4 Astronauts to the Moon on Artemis II Mission
NASA may launch four astronauts on a mission to fly around the Moon as early as March 6. That’s the launch date the space agency is now targeting, following a successful fueling test of its 98-meter-tall giant lunar rocket, which is on the launch pad at Kennedy Space Center in Florida. “This is really becoming…
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5,000-Year-Old Bacterium Found in Ice Resists Antibiotics and Concerns Scientists
A bacterium preserved in ice for about 5,000 years has been identified as resistant to several currently used antibiotics, in a discovery that reinforces the global alert about the advance of so-called superbugs. The microorganism, named Psychrobacter SC65A.3, was found in a cave in Romania and analyzed by researchers who point to potential risks associated…
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5,000-Year-Old Bacterium Found in Ice Resists Antibiotics and Concerns Scientists
A bacterium preserved in ice for about 5,000 years has been identified as resistant to various currently used antibiotics, in a discovery that reinforces the global alert about the advance of so-called superbugs. The microorganism, named Psychrobacter SC65A.3, was found in a cave in Romania and analyzed by researchers who point to possible risks associated…
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Is This Carbohydrate Ultra-Processed? Here’s a Test Even a Child Can Do
For the first time, the US government is encouraging people to avoid “highly processed” foods, which it says are driving diet-related diseases. But this recommendation puts many Americans in a tough spot. Studies show that many people want to reduce the amount of ultra-processed foods in their diets, but have trouble figuring out which foods…
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Is This Carbohydrate Ultra-Processed? Here’s a Test Even a Child Can Do
For the first time, the US government is encouraging people to avoid “highly processed” foods, which it says are the main culprits behind diet-related diseases. But this recommendation puts many Americans in a tricky spot. Studies show that many people want to cut back on ultra-processed foods in their diets, but have trouble identifying which…
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More than 60% of Brazilians are overweight
Overweight among Brazilians jumped 20 percentage points in 18 years. In 2024, 62.6% of the population was overweight, compared to 42.6% in 2006. Obesity (body mass index equal to or greater than 30 kg/m²) doubled, rising from 11.8% to 25.7% of the population. The data was released this week by the Ministry of Health and…