The short version
Gravity is an interactive solar-system simulator from Newton to Einstein.
From the HackerLinks archive
Gravity
Gravity is an interactive solar-system simulator from Newton to Einstein.
At a glance:
First seen:2026-06-09
Last seen:2026-06-09
Times seen:1
Website:qunabu.github.io
Why it caught our attention
The simulator got positive visual and technical feedback.
Where it surfaced on Hacker News
2026-06-09
Editorial paraphrase
Commenters praised the presentation and suggested pairing it with REBOUND for rigorous n-body work.
Original threadShow HN: Gravity – interactive solar-system simulator, from Newton to Einstein
Also surfaced in this discussion
REBOUND
Show HN: Gravity – interactive solar-system simulator, from Newton to Einstein
2026-06-09