A pair of space probes cruising the solar system may be able to pass through the tail of the mysterious Manhattan-sized comet ...

The interstellar comet 3I/ATLAS is barreling toward its closest point to the sun as perihelion looms on Oct. 29. How different will it look when it reappears on the other side?

Scientists have been searching for radio signals from hypothetical alien civilizations using radio telescopes for decades.

Recent scientific discussions suggest that the fourth dimension might be concealed within our everyday perception of reality, ...