New technology and a lack of regulation are allowing massive
swarms, or "constellations", of low-Earth communications satellites
such as SpaceX's Starlinks to be launched at relatively low cost,
leading to a dramatic rise in the number of satellites...
Coronal mass ejections (CMEs) and solar flares are arguably the
two most energetic phenomena in the solar system. Large gradual
solar energetic particle (SEP) events are primarily associated with
coronal mass ejections (CME) driven shocks. The...
Abstract: With the advent of gravitational
wave astronomy we are now in a perfect position to confront the
multitude of beyond-GR theories, typically invoked to connect to
quantum gravity paradigms, with observations in the strong-field
regime of...
Over the course of several years the Kepler mission continuously
collected photometric data from a single patch of the sky,
providing a homogenous set of transiting exoplanet detections. This
catalog remains the gold standard for transiting...
Abstract: Twist-angle engineering of 2D
materials has led to the recent discoveries of novel many-body
ground states in moiré systems such as correlated insulators,
unconventional superconductivity, strange metals, orbital magnetism
and...
Binary neutron star mergers are great multi-messenger sources.
These mergers generate gravitational waves (GWs) detectable with
ground-based interferometers and can be accompanied by luminous
electromagnetic (EM) radiation. The combined detection of...
The detections of gravitational waves from compact binary
mergers and the followup observations of electromagnetic emissions
together provide a powerful and independent tool to explore the
Universe. With successive upgrades to the LIGO and Virgo...
JWST, the most powerful and complex telescope ever designed for
space, was just successfully launched and deployed by NASA after 30
years in development. JWST is, in part, a successor to the Hubble
Space Telescope, but is unique in its infrared...
Most of the exoplanets (4,651+) discovered to date were detected
by looking for tiny diminutions in a star’s visible light when a
non-luminous object transits in front of it. Almost all exoplanets
and exoplanet candidates are within 3,000 light...
Abstract 1: The CDM scenario predicts an entire hierarchy of
dark substructure within the Milky Way halo that is, barring any
annihilation signal, only detectable gravitationally. Cold tidal
streams from disrupting globular clusters have been...
