It was 4 a.m. on Nov. 25 at the top of Hawaii's dormant Maunakea volcano. The process to view the comet took less time than expected. On the main screen, the subject at hand, interstellar comet ...
NASA's planet-hunting TESS spacecraft recently caught a view of a very different kind of cosmic object: interstellar comet 3I/ATLAS. During a special observation run from Jan. 15 to Jan. 22, the ...