4 ms·> Our next best window for sending out another group of probes is 2152 Planet alignment?by meragrin_ 3y ago> Our next best window for sending out another group of probes is 2152 Planet alignment?legobmw99 3y agoYes, https://en.m.wikipedia.org/wiki/Grand_Tour_program https://en.m.wikipedia.org/wiki/Grand_Tour_programdmead 3y agoIt'll be a good year for planetary astronomy anyhow.