The evidence for the existence of Dark Matter is well supported by
many cosmological observations. But we have not yet been able to
determine how this new type of matter fits into our understanding of
the Universe on the smallest scales. Separately, long standing
problems within the Standard Model point to new weakly interacting
particles to help explain away unnatural fine-tunings. The axion was
originally proposed to explain the Strong-CP problem, but was
subsequently shown to be a strong candidate for explaining the Dark
Matter abundance of the Universe. ABRACADABRA is a proposed
experiment to search for ultralight axion Dark Matter, with a focus on
the mass range $10^{-14} \lesssim m_a \lesssim 10^{-6}$\,eV. We search
for these axions and other axion like particles (ALPs) through a
modification to Maxwell’s equations, which cause strong magnetic
fields to source weak oscillating electrical currents parallel to the
field. These weak currents can be detected through the magnetic fields
that they generate. To see these, ABRACADABRA will use highly
sensitive SQUID magnetometers in a very low noise environment. At
MIT, we are building a 10\,cm scale prototype that will quickly be
sensitive to untested regions of parameter space. In the long term, we
hope to scale ABRACADABRA to a 1\,m$^3$ scale detector, which could be
sensitive enough to probe the QCD axion scale.