A comet born around another star is carrying water unlike anything found in our solar system. Observations of interstellar ...

Scientists studying 3I/ATLAS have detected unusually high levels of heavy water, indicating it formed in an extremely cold ...

Two spacecraft called Voyager 1 and Voyager 2 blasted off to investigate Jupiter and Saturn. They’re still gathering data ...

Interstellar comet 3I/ATLAS showed changing chemistry near the Sun, revealing clues about its internal structure and offering ...

NASA engineers are working to keep the Voyager mission alive as it cruises through interstellar space, opting to shut down ...

A comet named 3I/ATLAS was first discovered on July 1, 2025, and is located about 420 million miles away from Earth, ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American In an earlier blog post about Christopher ...

The interplanetary comet 3I/ATLAS is remarkably rich in a specific type of water that contains deuterium, meaning it came ...

Interstellar comet 3I/ATLAS released methane, a greenhouse gas 80 times stronger than CO₂, as it neared the Sun. This ...

Why is Christian Science in our name? Our name is about honesty. The Monitor is owned by The First Church of Christ, Scientist, and we’ve always been transparent about that. The church publishes the ...