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Limits of Knowledge Crossword
Solve our latest interactive crossword. We'll publish science-themed crosswords and math puzzles on alternating months.
- Astronomy
A claimed hint of alien life whips up spirited debate
Astronomers have a lot of thoughts about the latest paper claiming we’ve found the strongest hints of alien life yet on the distant planet K2 18b.
- Space
A NASA rover finally found Mars’ missing carbon
The Curiosity rover identified hidden caches of the mineral siderite, which could help explain why Mars lost its habitable climate.
- Health & Medicine
Clinical trials face uncertain futures amid Trump cuts
The Trump administration has reportedly disrupted over 100 clinical trials. Science News spoke to researchers about the impacts on four of them.
- Astronomy
Yes, there really is a black hole on the loose in Sagittarius
Astronomers now agree: They’ve spotted the first isolated stellar-mass black hole ever seen.
- Physics
Imitation dark matter axions have arrived. They could reveal the real thing
A long-elusive, hypothetical subatomic particle called the axion can be simulated and potentially detected in a type of thin material.
- Neuroscience
Early Parkinson’s trials revive stem cells as a possible treatment
The phase I clinical trials showed stem cell transplants for Parkinson’s disease appear to be safe and might restore dopamine-producing brain cells.
- Health & Medicine
A messed-up body clock could be a bigger problem than lack of sleep
For a good night of sleep, consider getting your circadian rhythm back in sync with the sun. Here’s how to do it.
- Artificial Intelligence
Tech billionaires’ vision of an AI-dominated future is flawed — and dangerous
Adam Becker’s new book, More Everything Forever, investigates the dangers of a billionaire-driven tomorrow, in which trillions of humans live in space, served by AI.
- Health & Medicine
A drug for heavy metal poisoning may double as a snakebite treatment
An initial clinical trial in Kenya found no safety concerns, a first step toward testing unithiol as a treatment for venomous snakebites in people.
- Health & Medicine
Three U.S tick species may cause a mysterious red meat allergy
Two cases of alpha-gal syndrome suggest that the lone star tick isn’t the only species in the United States capable of triggering an allergy to red meat.
- Science & Society
Federal cuts put help for mental health and drug addiction in peril
SAMHSA’s work is crucial to suicide and drug overdose prevention and mental health care. It may fall victim to changes to public health infrastructure.
