Light and Gravity Travel at the Same Speed, but Don't Arrive Together
Key topics
The article discusses how light and gravitational waves travel at the same speed but can arrive at different times due to interactions with matter, a point highlighted by the commenter who notes that spacetime itself has no refractive index, but matter does.
Snapshot generated from the HN discussion
Discussion Activity
Light discussionFirst comment
2m
Peak period
1
0-1h
Avg / period
1
Key moments
- 01Story posted
Nov 13, 2025 at 9:52 AM EST
about 2 months ago
Step 01 - 02First comment
Nov 13, 2025 at 9:54 AM EST
2m after posting
Step 02 - 03Peak activity
1 comments in 0-1h
Hottest window of the conversation
Step 03 - 04Latest activity
Nov 13, 2025 at 9:54 AM EST
about 2 months ago
Step 04
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