Science writer specializing in physics and space. Staff writer at Space.com. Tweets my own.

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@callacofield — 2,018 followers, 2,497 tweets

RT @torybruno: Scrub. LOX fill and drain valve acting up. Need to go out to the pad to check it out
@jeff_foust My legit reaction when I hear that a space telescope will be serviceable. https://t.co/wb1GTOEKkx
RT @jeff_foust: Hertz: WFIRST is designed to be serviceable, but won’t need it until circa 2030 (five years after launch.) We’ll ta… https://t.co/1Ipk6to4qk
RT @jeff_foust: Hertz: WFIRST is designed to be serviceable, but won’t need it until circa 2030 (five years after launch.) We’ll ta… https://t.co/1Ipk6to4qk
RT @sangerkatz: The Trump administration’s Medicaid work requirement policy rests on the idea that requiring work will make people… https://t.co/50oka7cxdY
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