Astronomers have used the European Southern Observatory's Very Large Telescope (ESO's VLT) to study the composition of ...

Eventually, we'll launch a mission dedicated solely to studying an interstellar object. When that day comes, which one should ...

A strange class of comet could explain the enigmatic behavior of ‘Oumuamua, the first known interstellar object—and even shed ...

Thomas Mulligan examines the wait calculation paradox, explaining why launching deep-space probes too soon might result in ...

Last year, an interstellar traveler entered our solar system. Some speculated that it was an alien spacecraft, but it turned ...

Observations of the fast-moving interstellar comet with the Very Large Telescope in Chile support similar observations made ...

There have been many sci-fi classics, but Prime Video's number one movie is the best of all of them.

Interstellar comet 3I/ATLAS carries isotopic ratios entirely outside the Solar System range, ESO’s Very Large Telescope has ...

Scientists studying interstellar comet 3I/ATLAS say its unusual chemical fingerprints suggest it formed around an ancient ...

For almost a decade—ever since 2017, when our first known interstellar visitor, 1I/‘Oumuamua, swooped through the inner solar ...

Cropped image of NASA’s James Webb Space Telescope observation of comet 3I/ATLAS with its Near-Infrared Spectrograph ...

The probe is set to become the third human-made object to leave the solar system, but it must first cross this mysterious ...