Follow DART's debris

1 · Follow the debris

Beginner

According to the simulations, what becomes of most of the debris thrown out by DART's impact?

It falls back onto Dimorphos It escapes the system It is captured by Didymos

2 · Weigh the fallback

In the model without a central boulder, Dimorphos weighs 3.53 billion kilograms. About 12% of its mass falls back onto it after the impact.

Intermediate

How many kilograms of debris fall back onto Dimorphos?

About 42 million About 420 million About 460 million

3 · Look for the central boulder

In the second model, a 64-metre boulder is hidden at the centre of Dimorphos.

Expert

Where is a gravity measurement most likely to pick up its trace?

At the antipode, under the thinnest debris layer Everywhere, with a recognisable pattern In the depression left by the impact

4 · Find the limit of GRASS

The predicted gravity changes, up to about 0.004 mm/s², are roughly a hundred times larger than what the GRASS gravimeter, landed on Dimorphos, can detect.

Expert

What will it be unable to tell on its own?

The strength of gravity where it sits Whether an anomaly comes from boulders near the surface or from a deep one Whether there is a gravity change of 0.004 mm/s²

Debris followed

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