given a txt file that contains longitude and latitude at first nothing seemed off about it and i plotted it
43.39893, 82.86786
42.75697, 82.95575
39.71761, 82.69208
38.96995, 81.11005
46.86946, 82.25263
47.99899, 79.44013
45.03653, 54.47919
52.22264, 52.63349
52.70457, 55.70966
57.5231, 58.43427
57.33384, 53.33661
45.59278, 68.54169
42.8859, 72.93622
33.44275, 71.52997
32.48413, 67.04755
31.59008, 62.38935
21.302, 80.23115
17.99163, 57.99482
42.82146, 57.46747
but then i noticed something
looks like whitespace cipher so i searched for tools until i found stegsnow
stegsnow -C headup.txt
but this gave nonsense so i needed a password, the name was a hint (heads up = on earth look up = start), which was in the plotted picture, it was constellations, after googling it and trying constellations names, "orion" was the password
stegsnow -C -p "orion" headup.txt
ICTF{Fr0m_Out3r_W0RLD}