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Dad

@GeekAndDad@mastodon.social

Astronomy Picture of the Day

@apod@mastodon.bot

Phil Plait

@badastro@mastodon.social

NASA

@nasa@social.beachcom.org

Geoff 🏴󠁧󠁢󠁳󠁣󠁴󠁿

@_thegeoff@mastodon.social

Hank Green

@hankgreen@mas.to

Kevin Slavin

@Slavin@saturation.social

Henpeck

@Henpeck@mstdn.social