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Roger Wood
  • Member for 1 year, 9 months
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49 votes
1 answer
5k views

Is there a better explanation of this picture showing the very distant star "Earendel"?

21 votes
1 answer
2k views

Do the axes of rotation of most stars in the Milky Way align reasonably closely with the axis of galactic rotation?

9 votes
1 answer
229 views

How to determine the scale on astronomical images?

8 votes
1 answer
129 views

How many photons does it take to determine the existence of a distant object?

8 votes
1 answer
91 views

Is there any correlation between the Cosmic Microwave Background (CMB) and the distribution of distant galaxies?

7 votes
1 answer
163 views

How are the occurrence and nature of micrometeoroid impacts on JWST optics identified?

6 votes
1 answer
472 views

Why do the solar system planets go rock-gas-ice instead of rock-ice-gas when moving away from the sun?

6 votes
2 answers
171 views

JWST mirrors each can be "positioned in tip, tilt, piston, horizontal & vertical decentering and clocking". What does this mean?

6 votes
0 answers
156 views

How are the aberrations seen in early JWST images corrected?

4 votes
1 answer
38 views

Are features in the CMB correlated with features in the SDSS map of the most distant galaxies?

4 votes
0 answers
99 views

Are there any bodies in the solar system whose rotation is almost tidally locked or barely tidally locked?

3 votes
0 answers
82 views

How do JWST and Hubble compare in detecting small bodies in the solar system that are a) white, b) black, c) Arrokoth-like, d) Voyager-like?

2 votes
1 answer
224 views

Scholarly work on the gravitational disruption of a rocky planet by a close pass with another planet?