1 00:00:00,050 --> 00:00:06,220 [This is early data from the testing phase of NASA's Transiting Exoplanet Survey Satellite (TESS).] 2 00:00:06,220 --> 00:00:12,420 [It captured not only a comet, but also a number of other interesting features.] 3 00:00:12,420 --> 00:00:18,530 4 00:00:18,530 --> 00:00:24,650 [NEOWISE Comet C/2018 N1] 5 00:00:24,650 --> 00:00:30,890 [Notice how the comet tail changes direction.] 6 00:00:30,890 --> 00:00:36,940 [This change is due to the solar wind.] 7 00:00:36,940 --> 00:00:42,950 [These are variable stars whose brightness changes over time.] 8 00:00:42,950 --> 00:00:49,030 [All the other fixed spots are stars. Their appearance results from image processing that 9 00:00:49,030 --> 00:00:55,200 makes the comet and variable stars more visible.] 10 00:00:55,200 --> 00:00:57,280 11 00:00:57,280 --> 00:01:03,370 [TESS even saw a faint wisp of reflected light coming from Mars.] 12 00:01:03,370 --> 00:01:09,560 13 00:01:09,560 --> 00:01:15,660 14 00:01:15,660 --> 00:01:21,790 [Last, but not least, this view is filled with asteroids. They're visible as small moving white dots.] 15 00:01:21,790 --> 00:01:27,990 [Quickly running the video back and forth makes their movement more apparent.] 16 00:01:27,990 --> 00:01:36,296