A rare interstellar comet — only the third ever confirmed to enter our solar system — was photographed last week, closely approaching Mars, the European Space Agency said Tuesday. The images taken on ...

Rare interstellar visitor comet 3I/ATLAS has made headlines and caught the attention of the public for months. The object is one of only three space objects originating from a star other than our sun ...

NBC News' Gadi Schwartz talks to Harvard Professor Avi Loeb about the new images released of interstellar object 3I/Atlas as ...

Comet 3I/ATLAS is one of only three interstellar objects ever detected in our solar system. Scientists are working to determine the comet's size and physical characteristics as it passes through our ...