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When to Use DART Asteroid Deflection 3D Explorer - Best Sessions and Limits

Last reviewed: 2026-07-24

Open DART Asteroid Deflection 3D Explorer when you need a clear picture of NASA's real 2022 kinetic-impact planetary-defense test and its measured before/after result - not a live tracker and not a gravitational simulation.

A kinetic-impact lesson

A lesson starts by clicking "Fire DART" and watching the probe hit Dimorphos, then reading the facts panel's before/after orbital period change against NASA's 73-second minimum-success threshold.

Sessions this explorer does not fit

Sessions this page does not fit are a numerically integrated orbital simulation - the bodies are drawn closer together than their true separation and the before/after speed change is a scaled illustration of the real ratio, not a gravitational solver - or a live tracker of Didymos and Dimorphos today. For a real predicted near-miss with no impact, use the Apophis 2029 Flyby 3D Explorer; for the slow passive drift thermal re-emission causes on a spinning asteroid, use the Yarkovsky Effect 3D Explorer. Walk the controls in the step-by-step guide.

← Back to Space 3D

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Last updated: Jul 23, 2026

Reviewed by the Free Tool Online editorial team · Tested in the current versions of Chrome, Firefox, Safari, and Edge before publishing. No account is needed to use any tool. Report a bug - we triage within 72 hours. · Last refreshed April 2026.

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