After being in print for twenty years, the Chronological Encyclopedia of Discoveries in Space, covering everything that was learned on every single space mission in the 20th century, has finally gone out of print.
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According to this article from Ars Technica, NASA is considering shifting gears in its Artemis lunar program to become more dependent on SLS rather than a mix of SLS and commercial rockets.
The new plan, if implemented, would substantially cut commercially developed rockets—such as SpaceX’s Falcon Heavy and Blue Origin’s New Glenn—back from the Artemis program. Previously, NASA had said it would launch elements of its Human Landing System on commercial rockets, because such vehicles cost much less than the estimated $2 billion rate per launch of the SLS vehicle. Now, perhaps, private rockets may be called upon to launch smaller pieces such as a lunar rover to the Moon’s surface.
The source document, which appears to be very preliminary and which NASA calls “inaccurate”, also calls for four SLS launches leading up to the 2024 lunar landing, something that seems very very unlikely. Not only would it require Boeing to move faster in building additional SLS rockets, something the company has routinely been unable to do, this schedule assumes funding from Congress for SLS, something that remains unclear.
It also appears from the proposed launch schedule that Lunar Gateway is fading from view. This makes great sense, as the Gateway only causes delays and higher costs for any lunar landing program, something the Trump administration clearly wishes to avoid.