Among these celestial visitors — the interstellar object 3I/ATLAS, along with C/2025 A6 (Lemmon) and C/2025 R2 (SWAN) — not ...

On Dec. 18, just 24 hours before its closest approach, the Green Bank Telescope scanned frequencies from 1 to 12 GHz. Their ...

Scientists have sought out and detected radio emissions from from interstellar comet 3I/ATLAS, all but confirming that it has natural origins.

SETI scientists observing a pulsar’s radio pulses over time are redefining how astronomers time pulsars and search for ...

Researchers are stunned after new readings show 3I/ATLAS surrounded by a huge x-ray cloud stretching 250,000 miles.

Allen Telescope Array campaign shows slow changes in radio scintillation that can nudge pulsar timing by billionths of a second ...

A Star Trek–inspired idea by Miguel Alcubierre kicked off decades of theory and experiments as scientists pursue plausible ...

Voyager 1, NASA’s deep-space probe, could soon become the first spacecraft to reach a historic milestone. In November 2026, the probe will be one light-day from Earth.

Kip Thorne discusses his discoveries through LIGO (Laser Interferometer Gravitational-Wave Observatory). Dr. Thorne founded the observatory and won the Nobel Prize in physics in 2017. (Emmeline Blythe ...

The latest image confirms a shape we first saw long before anyone realized its significance. Rotational waves now appear to dominate the object’s entire coma. And the evidence continues to point away ...

Interstellar objects like 3I/ATLAS are most likely to enter our solar system from two specific directions, a new study suggests. What does it mean for Earth? When you purchase through links on our ...

The original version of this story appeared in Quanta Magazine. The best perk of Alberto Maspero’s job, he says, is the view from his window. Situated on a hill above the ancient port city of Trieste, ...