In a new study of axion motion, researchers, including Friends of the Institute for Advanced Study Member Keisuke Harigaya, propose a scenario known as “kinetic misalignment” that greatly strengthens the case for axion/dark matter equivalence.
Occupying a region of space
(L2) four times more distant than the moon, the SRG observatory
is busily rendering an X-ray map of the universe and has officially
reached the half-way mark of its first all-sky survey, which began
in December and is...
A pioneering mission that traces its roots back to the Soviet
Union achieved liftoff on July 13, 2019. Rashid Sunyaev, Maureen and John
Hendricks Distinguished Visiting Professor in the School of Natural
Sciences, helped conceive of the venture more...
Rashid Sunyaev, Maureen
and John Hendricks Distinguished Visiting Professor in the School
of Natural Sciences, is the Russian Scientific Head of the
Spectrum-Roentgen-Gamma (SRG) mission, which promises a trove of
data for researchers to probe the...
Melissa Pandika of OZY profiles theoretical physicist Tracy Slatyer, former Member in the
School of Natural Sciences, whose work, Pandika writes, "could
bring physicists closer to detecting dark matter signals by better
enabling them to tease these...
Everything that humans have seen up until now exists in the
4.9 per cent of the universe that interacts
with light. The rest is hidden from view. Most of it, physicists
believe—68.3 per cent—is dark energy, an enigmatic force that
drives the...
Dark matter is as tangible as stars and planets to most
astronomers. We routinely map it out. We conceive of galaxies as
lumps of dark matter with dabs of luminous material. We understand
the formation of cosmic structure, as well as the evolution...
Could dark matter consist of primordial black holes, as numerous
as the stars? It’s an old, improbable idea, but it made a
Lazarus-like comeback a year ago, when the discovery of
gravitational waves suggested that the cosmos abounds with...
For 80 years, scientists have puzzled over the way galaxies and
other cosmic structures appear to gravitate toward something they
cannot see. This hypothetical “dark matter” seems to outweigh all
visible matter by a startling ratio of five to one...
