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Questions regarding the Sun and objects orbiting it.

4 votes
1 answer
102 views

Why is our heliosphere an asymmetric croissant shape?

The big, recent astronomy news about our heliosphere's asymmetric croissant shape has me confused.... Some articles mention the influence on our solar system's outermost boundary of very hot cations, …
Kurt Hikes's user avatar
  • 5,585
1 vote
0 answers
84 views

Does the north pole of the Solar System (with respect to the invariable plane) point towards...

How is our Solar System as a whole (not the wobbly Earth) tilted with respect to the invariable plane of the Milky Way? I understand our Sun's north pole is largely pointing towards our direction of o …
Kurt Hikes's user avatar
  • 5,585
6 votes
2 answers
494 views

How do scientists know that Earth used to spin much more rapidly?

News has just been released all over my news feeds about how paleontologists now believe that early photosynthetic organisms became much more efficient at producing oxygen after the Earth started to s …
Kurt Hikes's user avatar
  • 5,585