# I am the Watcher. I am your guide through this vast new twtiverse.
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# Usage:
#     https://watcher.sour.is/api/plain/users              View list of users and latest twt date.
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#     https://watcher.sour.is/api/plain/mentions?uri=:uri  View all mentions for uri.
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Phys_org
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Eclipsing X-ray binary 4U 1538-522 investigated with NuSTAR
Using NASA's Nuclear Spectroscopic Telescope Array (NuSTAR), Indian astronomers have observed an eclipsing X-ray binary system known as 4U 1538-522. Results of the observational campaign, published September 26 in the Monthly Notices of the Royal Astronomical Society journal, deliver important insights into the properties and behavior of this pulsar. ⌘ Read more