Mysterious interstellar comet 3I/Atlas set to make closest approach to Earth this week
NASA reveals new 3I/Atlas images. What do we know about the comet?
The mysterious interstellar comet 3I/Atlas is set to make its closest approach to earth this week, zooming past our planet around Dec. 19.
The comet is only the third known object to have entered our solar system from orbit around another star.
Its intriguing nature has led to speculation that it could be an alien spacecraft, though scientists state its characteristics are consistent with a natural phenomenon.
Several NASA and European Space Agency spacecraft, including those near Mars and the Juice spacecraft, have observed the comet during its passage.
NASA said 3I/ATLAS poses no threat to Earth and will get no closer than about 170 million miles (275 million km) to our planet.