Scientific American
Growth hormone peptides promise to stall aging—but does the science stack up?
Sermorelin, tesamorelin and other growth hormone peptides are being touted as antiaging elixirs, but what evidence is behind those claims?
Science
Scientific American
Bonus crossword: Tints of life
Play a bonus science crossword that ties into even more stories from the September 2026 issue of Scientific American.
Scientific American
The brain, solved
The human brain has upward of 86 billion neurons, connected by some 100 trillion synapses
New Scientist
The best new science-fiction books of September 2026
From China Miéville to Brandon Sanderson via a tribute to Ursula K. Le Guin, there are some really huge names with new sci-fi novels out this month - as well as a new Doctor Who tale, says Alison Flood
Scientific American
What’s next for NASA’s new Roman Space Telescope?
After a flawless launch, the Nancy Grace Roman Space Telescope is on a mission to solve some of the universe’s biggest mysteries
New Scientist
How our bodies adapt to extreme temperatures – until it gets too hot
No matter where you’re from, there are things you can do to cope better with extreme temperatures. But it takes work to stop our bodies’ adaptations from slipping backwards over winter, and there are limits to how far we can go
Scientific American
NASA launches Roman Space Telescope to explore dark energy and distant worlds
NASA’s Nancy Grace Roman Space Telescope is on a mission to probe dark energy, hunt for distant worlds and transform our view of the universe
Scientific American
Dark matter experiment catches quietest neutrinos ever measured
In its hunt for dark matter, the XENONnT experiment has detected the rare, feeble glow of neutrinos smacking into electrons
New Scientist
Should we all be taking low doses of lithium to prevent Alzheimer’s?
Animal studies have shown that lithium orotate could help stave off dementia, and a human trial is about to start to see if the effects hold. Columnist Alice Klein takes a look at the benefits and downsides of lithium
Scientific American
How much should a dinosaur cost?
Fossils are selling for tens of millions of dollars at auction. But why are the ancient creatures the hot new thing for the ultrarich?
Scientific American
NASA’s Nancy Grace Roman Telescope launches to space
The Nancy Grace Roman Telescope will probe dark matter and dark energy, discover exoplanets and study stars
Scientific American
Why obsessing over self-improvement could be sabotaging your brain
Our obsession with ‘maxxing’ every aspect of our lives could actually be stressing us out
Scientific American
NASA’s Roman Space Telescope could find alien Earths—but not like you think
The Roman Space Telescope will spend more than a quarter of its time staring at the Milky Way’s bulge, a star-packed central region of our galaxy that may swarm with small, rocky exoplanets
Scientific American
Growth hormone peptides promise to stall aging—but does the science stack up?
Sermorelin, tesamorelin and other growth hormone peptides are being touted as antiaging elixirs, but what evidence is behind those claims?
Scientific American
Bonus crossword: Tints of life
Play a bonus science crossword that ties into even more stories from the September 2026 issue of Scientific American.
Scientific American
The brain, solved
The human brain has upward of 86 billion neurons, connected by some 100 trillion synapses
New Scientist
The best new science-fiction books of September 2026
From China Miéville to Brandon Sanderson via a tribute to Ursula K. Le Guin, there are some really huge names with new sci-fi novels out this month - as well as a new Doctor Who tale, says Alison Flood
Scientific American
What’s next for NASA’s new Roman Space Telescope?
After a flawless launch, the Nancy Grace Roman Space Telescope is on a mission to solve some of the universe’s biggest mysteries
New Scientist
How our bodies adapt to extreme temperatures – until it gets too hot
No matter where you’re from, there are things you can do to cope better with extreme temperatures. But it takes work to stop our bodies’ adaptations from slipping backwards over winter, and there are limits to how far we can go
Scientific American
NASA launches Roman Space Telescope to explore dark energy and distant worlds
NASA’s Nancy Grace Roman Space Telescope is on a mission to probe dark energy, hunt for distant worlds and transform our view of the universe
Scientific American
Dark matter experiment catches quietest neutrinos ever measured
In its hunt for dark matter, the XENONnT experiment has detected the rare, feeble glow of neutrinos smacking into electrons
New Scientist
Should we all be taking low doses of lithium to prevent Alzheimer’s?
Animal studies have shown that lithium orotate could help stave off dementia, and a human trial is about to start to see if the effects hold. Columnist Alice Klein takes a look at the benefits and downsides of lithium
Scientific American
How much should a dinosaur cost?
Fossils are selling for tens of millions of dollars at auction. But why are the ancient creatures the hot new thing for the ultrarich?
Scientific American
NASA’s Nancy Grace Roman Telescope launches to space
The Nancy Grace Roman Telescope will probe dark matter and dark energy, discover exoplanets and study stars
Scientific American
Why obsessing over self-improvement could be sabotaging your brain
Our obsession with ‘maxxing’ every aspect of our lives could actually be stressing us out
Scientific American
NASA’s Roman Space Telescope could find alien Earths—but not like you think
The Roman Space Telescope will spend more than a quarter of its time staring at the Milky Way’s bulge, a star-packed central region of our galaxy that may swarm with small, rocky exoplanets