; Our solar system is filled with meteoric particles, or cosmic dust,; which is either interplanetary or interstellar in origin. Interstellar; dust (ISD) enters the heliosphere due to the relative motion of the sun; and the interstellar flow. Interplanetary dust (IPD) comes primarily; from asteroid collisions or comet sublimation, and comprises the bulk of; material entering Earth’s atmosphere. This study examines variations in; ISD and the IPD flux at Earth using observations from three different; satellite techniques. First are size-resolved in situ meteoroid; detections by the Ulysses spacecraft, and second are in situ indirect; dust observations by Wind. Third are measurements of meteoric smoke in; the mesosphere by the Solar Occultation For Ice Experiment (SOFIE). Wind; observations are sorted into the interstellar and interplanetary; components. Wind ISD show the anticipated correlation to the 22-yr.; solar magnetic cycle, and are consistent with model predictions of ISD.; Because Wind does not discriminate particle size, the IPD measurements; were interpreted using meteoric mass distributions from Ulysses; observations and from different models. Wind observations during; 2007-2020 indicate a total meteoric influx at Earth of 22 metric tons; per day (t d; -1; ), in reasonable agreement with; long-term averages from SOFIE (25 t d; -1; ) and Ulysses; (32 t d; -1; ). The SOFIE and Wind influx time series both; show an unexpected correlation to the 22-yr. solar cycle. This; relationship could be an artifact, or may indicate that IPD responds to; changes in the solar magnetic field.;
