3 ms·

How can something be upside down in space?

• tb 17y ago
  If it's close to the horizon then there's a definite "up" - towards the zenith. Many telescopes invert the incoming image, hence why the kids would've thought it was upside-down. (I am assuming the object in question was visible with the naked eye, probably the moon, although it's also possible that the children noticed that when the telescope moved, the image appeared to move in the "wrong" direction relative to their expectations.)
• rubinelli 17y ago
  I think it's about how telescopes show images upside down, except for those that flip them back with mirrors.