Are tiny black holes zipping through our solar system? Scientists hope to find out.

[Jim__]

4. A version of the paper is available on arXiv.

Here

The argument is that such perturbations would be too small to be currently detectable, but improved instruments may allow such detection in the future.

The abstract from the paper:

ABSTRACT
If primordial black holes (PBHs) of asteroidal mass (M_PBH [in] [10¹⁷, 10²³] g) make up the entire
dark matter they could be detectable through their gravitational influence in the solar system. In
this work we study the perturbations that PBHs induce on the orbits of planets. Detailed numerical
simulations of the solar system, embedded in a halo of primordial black holes, are performed. We show
that the perturbations are too small to be directly detectable with current data, challenging recent
results that have ruled out PBHs as a dark matter candidate. Using the Earth-Mars distance as an
observational probe, we estimate that an improvement in the measurement accuracy by more than an
order of magnitude is required to detect the gravitational influence of PBHs in the solar system in the
foreseeable future.