Exotic nuclei near and beyond the proton drip line exhibit a range of unique decay processes, including β-delayed proton emission, α decay, and direct proton radioactivity. Spectroscopic studies utilizing high-efficiency, low-threshold detection systems have become essential for exploring the intricate properties of these nuclei. ... Read full Story
Scientists have found evidence for a cosmic collision in the Perseus cluster, a group of thousands of galaxies not far from our own. ... Read full Story
Using the James Webb Space Telescope, astronomers have peered into galaxies that existed at cosmic noon to hunt ravenously feeding black holes and bursts of starbirth. ... Read full Story
Scientists in China have refuelled a thorium reactor on the fly for the first time. The breakthrough is paving the way for working reactors that are significantly safer than conventional alternatives. ... Read full Story
Power blackouts that left millions of people across Spain and Portugal without electricity may have been caused by a bizarre atmospheric phenomenon, though the true cause is yet to be determined. ... Read full Story
President Trump has dismissed hundreds of scientists working on the congressionally mandated National Climate Assessment, raising concerns about whether the void will be filled with pseudoscience ... Read full Story
"What are sometimes called superbugs — microbes resistant to every available drug — are not merely the stuff of nightmares. They are taking lives right now." ... Read full Story
A vaccine that blocks infection with the human papillomavirus has helped to lower cervical cancer rates. Researchers want to find out if the shot also prevents heart attacks ... Read full Story
Conventional helium production comes with enormous carbon emissions, so scientists are looking for alternatives in places like Yellowstone, Tanzania's Rukwa Rift and India's Bakreswar-Tantloi province. ... Read full Story
A pair of 2021 satellite photos highlight an unusually heavy snowfall in Hawaii that covered the summits of the volcanoes Mauna Loa and Mauna Kea. ... Read full Story
Amazon has launched its first operational Project Kuiper satellites in its attempt to compete with SpaceX’s Starlink—but experts remain concerned about space debris and astronomy ... Read full Story
The National Science Foundation's Dark Energy Camera reveals a stunning glimpse into the 'dark nebula' known as the Circinus West molecular cloud, a region of space that's so dense with gas that light can't escape it. ... Read full Story
Archaeologists have identified two potential mass graves of Black Union soldiers who were targeted by Confederate guerrillas in the Civil War. ... Read full Story
Uturuncu, a dormant volcano in Bolivia, appeared to be getting ready to erupt following earthquakes and "sombrero" shaped deformation — scientists have now worked out what's going on beneath the surface. ... Read full Story
Clocks on Earth are ticking a bit more regularly thanks to NIST-F4, a new atomic clock at the National Institute of Standards and Technology (NIST) campus in Boulder, Colorado. ... Read full Story
President Trump’s EPA administrator Lee Zeldin seems to be focusing on costs to industry in an effort to dismantle the scientific justification for climate regulations ... Read full Story
Merriam-Webster's Word of the Day for April 30, 2025 is:
insouciance \in-SOO-see-unss\ noun
Insouciance is a formal word that refers to a feeling of carefree unconcern. It can also be understood as a word for the relaxed and calm state of a person who is not worried about anything.
// The young actor charmed interviewers with his easy smile and devil-may-care insouciance.
“Gladiator II is OK when Denzel’s off-screen, but sensational when he’s on it. ... What makes the performance great is its insouciance; it’s both precise and feather-light. And it’s what a great actor can do when he’s set free to have fun, to laugh at himself a little bit. ... Denzel’s Macrinus is gravitas and comic relief in one package.” — Stephanie Zacharek, Time, 22 Nov. 2024
Did you know?
If you were alive and of whistling age in the late 1980s or early 1990s, chances are you whistled (and snapped your fingers, and tapped your toes) to a little ditty called “Don’t Worry, Be Happy” by Bobby McFerrin, an a cappella reggae-jazz-pop tune that took the charts by surprise and by storm. An ode to cheerful insouciance if ever there was one, its lyrics are entirely concerned with being entirely unconcerned, remaining trouble-free in the face of life’s various stressors and calamities. Such carefree nonchalance is at the heart of insouciance, which arrived in English (along with the adjective insouciant), from French, in the 1800s. The French word comes from a combining of the negative prefix in- with the verb soucier, meaning “to trouble or disturb.” The easiness and breeziness of insouciance isn’t always considered beautiful, however. Insouciance may also be used when someone’s lack of concern for serious matters is seen as more careless than carefree.