Rushed approval causes hope—and caution. Plus, one pretty, and scary, cat.
|  | Wednesday, January 11, 2023 | | | | |
 | PHOTOGRAPH BY SIMON FRASER/MRC UNIT, NEWCASTLE GENERAL HOSPITAL/SCIENCE PHOTO LIBRARY
| | At first blush, the accelerated approval of a drug that promises to attack Alzheimer’s at its root offers great hope for millions of people suffering from the progressive mind-wasting disease.
But a number of scientists caution that benefits have not been overwhelmingly proven and that side effects are dangerous and not fully understood. Three patients who participated in the clinical trial have died.
Is the treatment, which will cost $26,500 a year, safe and effective? That's what we’re exploring.
Read the full story here.
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In the top image, a segment of a brain affected by Alzheimer's disease is at the left; an unaffected segment is on the right.
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 | | PHOTOGRAPH BY RALPH PACE | | | |
 | PHOTOGRAPH BY JOEL SARTORE, NAT GEO PHOTO ARK
| | Don’t be fooled: Sven, a sand cat recently featured on our Instagram, is a master hunter. With those big ears, sand cats listen for creatures burrowing underground and then dig to capture their prey. Since they live in desolate, arid environments, they’ll eat anything from small rodents and spiders to venomous vipers. Nat Geo Explorer Joel Sartore photographed this mighty killer for his Photo Ark, which now has more than 13,000 animals.
Related: Pictures of (adorable) small wildcats around the world
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 | PHOTOGRAPH BY ANDREA FRAZZETTA/NAT GEO IMAGE COLLECTION
| | This place wasn’t built in a day: Nor was it built by the twins Romulus and Remus, as ancient historians would have you believe. Instead, Rome was founded by common farmers and shepherds—but their marshy city was soon controlled by kings with absolute power. Their rule set the stage for the creation of the Roman Republic—and later, another turn toward autocracy. (Tourists at the Roman Forum, above.)
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 | | Video still by National Geographic CreativeWorks | | | |
 | | ILLUSTRATION BY ANDREW FAZEKAS | | Hunting for the Hunter: This week, with the sky free of the moon's brightness, catch Orion, the dominant constellation, with the brightest stars in one stellar pattern, particularly Betelgeuse marking his left shoulder and Rigel his right foot. Look for Orion rising in the southeast during the early evening, also recognizable by the hunter's “belt”—Alnitak, Alnilam, and Mintaka. The three stars also can help navigate to nearly bright stars like Sirius and Aldebaran (illustrated above)—and their constellations, Canis Major and Taurus. — Andrew Fazekas
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Today’s soundtrack: Nuestra canción, Monsieur Periné
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