Science & Climate

9 of 10 fish caught in the national park last year were chain pickerel The first chain pickerel at Kejimkujik was caught in 2018. In less than 10 years, the species has overtaken park waters. (Alex Lynch)  Kejimkujik National Park in Nova Scotia is pausing its annual brook trout census because …

Orbiter parts and partners will be ‘repurposed’ for base NASA administrator Jared Isaacman speaks during the rollout of NASA’s next-generation moon rocket in Cape Canaveral, Fla., on Jan. 17. (Joe Skipper/Reuters)  NASA is cancelling plans to deploy a space station in lunar orbit and will instead use its components to construct …

Not all radon monitors being sold online or in stores are approved for use in Canada, experts warn While multiple radon monitors are approved for use in Canada, such as this electronic Airthings device, plenty more being sold in stores and online are either recalled or not yet certified. (Mathieu Theriault/CBC) …

Bull sharks — widely considered to be solitary — may be more social than previously thought Scientists have found that bull sharks — widely considered to be solitary — can form complex social bonds. (Natasha Marosi)  Not all sharks are the lone, cold, ruthless predators that many films depict them to …

Wind turbines operate along a solar farm near Weifang in eastern China’s Shandong province on March 22, 2024. (AP Photo/Ng Han Guan, File) HANOI, Vietnam (AP) — The war in Iran is exposing the world’s reliance on fragile fossil fuel routes, lending urgency to calls for hastening the shift to …

Raphael Chryslar After their grisly destruction in a terror attack in 2001 — and the chaotic and deadly wars that followed — it can be hard to remember that the World Trade Center’s Twin Towers, originally completed in 1973, were architecturally controversial for their impact on the Manhattan skyline. Now, a …

Scientists have searched the skies for alien radio signals for more than 60 years, but all they’ve heard so far is what Search for Extraterrestrial Intelligence, or SETI, researchers call “the Great Silence.” A recent study suggests that even if there are aliens out there sending messages, stellar wind and …

Male-dominated field of fossils and dinos is reckoning with ties to wealthy sex offender Undated pictures provided by the U.S. Department of Justice on Jan. 30 as part of the Jeffrey Epstein files. The files have revealed the extent of the late convicted sex offender’s connections with powerful politicians, business …

Calling 911 in space is not an option. Future long-distance space travelers will be on their own NASA astronaut Mike Fincke is helped out of the SpaceX Dragon Endeavour spacecraft after a medical episode in space led to his quick evacuation from the International Space Station. (NASA/Bill Ingalls)  Astronaut health has …

Not only did Dimorphos’s orbit shift, the entire asteroid pair was nudged around the sun Pictured here is the binary asteroid system that scientists smashed a spacecraft into. Dimorphos, left, and Didymos, right, are respectively about 160 meters in diameter and 780 meters in diameter. (NASA/Johns Hopkins APL)  One day, …