9 ms·
That article contains 3 astronomical photos, but none of them are pictures of what the article is about. They are not pictures of "invisible walls".
by dificilis 4y ago
That article contains 3 astronomical photos, but none of them are pictures of what the article is about.
They are not pictures of "invisible walls".
- icedchai 4y agoHow can we be sure? The walls are invisible. Perhaps they are hiding in plain site. ;)
- daniel-cussen 4y agoGravity is the ultimate invisible wall.