An Explosion Without a Crater
An Explosion Without a Crater On June 30, 1908, a powerful explosion tore through the atmosphere above a remote region…
A Planet Without a Sunrise
A Planet Without a Sunrise Most people imagine planets as members of solar systems. Rogue planets break that picture. The…
A Cosmic Flash Shorter Than a Blink
A Cosmic Flash Shorter Than a Blink Fast radio bursts, or FRBs, are brief but powerful flashes of radio energy…
Tracks with No Visible Mover
Tracks with No Visible Mover For decades, rocks on Racetrack Playa in Death Valley left long trails across the desert…
A Roman Cup with Two Colors
A Roman Cup with Two Colors The Lycurgus Cup changes appearance depending on how light reaches it. The core of…
A Message Without a Reader
A Message Without a Reader The Phaistos Disc is one of the most iconic and enigmatic artifacts of Minoan Crete….
A Fossil That Returned Alive
A Fossil That Returned Alive Coelacanths were known from fossils long before a living individual shocked science in 1938. The…
The Animal Who Became the Ending
The Animal Who Became the Ending Lonesome George was discovered on Pinta Island in 1971. He became the last known…
A Subspecies Represented by Two Animals
A Subspecies Represented by Two Animals The northern white rhino is not completely extinct. Two known individuals remain: Najin and…
A Species Trapped Inside a Shrinking Margin
A Species Trapped Inside a Shrinking Margin The vaquita is the world’s smallest living cetacean and the most endangered marine…