Canceling the tracker layer upgrade to the spectrometer would also not be catastrophic. The addition of a silicon tracker layer on top of the detector would increase the amount of data from the $2 billion physics experiment over the next five years by a factor of three. However, the experiment has been in operation since 2011, so it has had ample time to collect information about dark matter and other fundamental physics in the universe.
Cutting crews down to size
The real eye-catching proposal in NASA’s options is reducing the crew size from four to three.
Typically, Crew Dragon missions carry two NASA astronauts, one Roscosmos cosmonaut, and an
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