New observations fail to confirm signs of life in the atmosphere of the distant planet K2-18b. They also raise questions about what it will take to detect biology light-years away.
Tag: Water
Hints of Life on Exoplanet K2-18b Recede Even Further
New observations fail to confirm signs of life in the atmosphere of the distant planet K2-18b. They also raise questions about what it will take to detect biology light-years away.
Rip Current Survival Tips: What to Do if You Get Caught in One
From land, a rip current can appear relatively calm, as a strip of water that extends out between breaking waves. Its appearance can be deceiving.
The West’s Megadrought Might Not Let Up for Decades, Study Suggests
Clues from another dry spell 6,000 years ago are helping scientists understand what’s driving the latest one, and why it’s been so unrelenting.
The West’s Megadrought Might Not Let Up for Decades, Study Suggests
Clues from another dry spell 6,000 years ago are helping scientists understand what’s driving the latest one, and why it’s been so unrelenting.
Calgary Brings Fluoride Back to Its Drinking Water
Calgary removed fluoride from its water supply in 2011, but residents voted to reverse course after studies linked the move to worse dental health among children.
India and Pakistan’s Air Battle Is Over. Their Water War Has Begun.
Though the two neighbors declared a cease-fire this month, a crucial water-sharing treaty remains at risk.
French Government and Nestlé Accused of Cover-Up in Perrier Water Scandal
An inquiry found that Nestlé and French officials had concealed the company’s practice of filtering Perrier water it labels “natural.” The head of Nestlé has suggested that human activity is making pure water scarcer.
Trump Administration to Uphold Some PFAS Limits but Eliminate Others
The E.P.A. said it would maintain limits on the two most common “forever chemicals” in tap water. Rules for four others will be rolled back.
E.P.A. Says It Will Tackle ‘Forever Chemicals.’ Details Are Sparse.
A new proposal to combat PFAS contamination, announced by the Environmental Protection Agency, left critical questions unanswered.