An Impact Structure With Legs
Editor’s Note: Today’s story is the answer to the October Puzzler. From above, the mere appearance of a…
How the Tide Turns at the Mouth of the Elbe
One of the major rivers of Europe, the Elbe flows more than 1,000 kilometers (600 miles) across the…
Shaping the Emerald City – NASA Science
Seattle, Washington—sometimes known as the “Emerald City”—was glimmering in the morning sunlight when an astronaut aboard the International…
Fans of the Arctic – NASA Science
Editor’s Note: Today’s story is the answer to the July Puzzler. Call it an alluvial face-off. On the southern…
Playing the Moon Game – NASA Science
In preparing to visit the Moon’s surface, soon-to-be lunar explorers in NASA’s Apollo program first ventured into a…
Record-Setting Retreat of Hektoria Glacier
To say something moves at a glacial pace is to imply sluggish, unhurried change. But what transpired over…
Eyeing the Richat Structure – NASA Science
In a remote part of northern Mauritania on the Adrar Plateau lies a desert landscape rich in human…
Contours of the James Bay Lowlands
Early spring around Hudson Bay in northern Canada is largely indistinguishable from winter. Sea ice still clings to…
Snow in the Shadow of the Andes
On the eastern, arid side of the Andes, the plains of southern Argentina stretch from the mountains to…
A Bit of Gray on an Emerald Isle
Today’s story is the answer to the March 2026 puzzler. Though Ireland is known for the many shades…
Reaching Top Speed in the Dolomites
Nestled among high snowy peaks in northern Italy, Cortina d’Ampezzo is hosting athletes in the 2026 Winter Olympics…
A Grand, Snow-Rimmed Canyon – NASA Science
A sunny day in early 2026 revealed the remnants of a winter storm on Arizona’s high desert—and produced…