Scientific American

The Race to Study an Interstellar Comet from Deep Space

Astronomers are hustling to use interplanetary spacecraft to study the interstellar comet dubbed 3I/ATLAS while the sun is ...

3I/ATLAS alien ship engine in overdrive? Harvard scientist claims interstellar comet is driven by ‘non-gravitational’ acceleration; here’s what he said after the comet ...

Harvard astrophysicist Avi Loeb suggests the interstellar comet 3I/ATLAS's unusual blue color and non-gravitational acceleration could point to an internal engine, possibly alien technology. He ...

Goodbye, 3I/ATLAS: Object Won't Be Visible Again Until Early December

Interstellar object 3I/ATLAS reaches its perihelion, prompting Harvard's Avi Loeb to suggest it's an 'alien mothership.' ...

3I/ATLAS Accelerates on Its Own — Avi Loeb Says an 'Engine' Can't Be Ruled Out

Astronomers detect unexplained acceleration in interstellar object 3I/ATLAS as Avi Loeb suggests an artificial 'engine' can't ...