Data from the OSIRIS-REx mission to Bennu place a ceiling on the strength of a hypothetical fifth force that could explain dark matter’s origins.

We’ve seen these Lichtenberg figures before, but generally as electric discharges in acrylic sheets or crystal balls using multi-mega-electron volt accelerators. [PapaJ06]’s technique is ...

An international team of researchers has traced the source of mysterious ultrahigh-energy gamma rays to the heart of the ...