Detecting electromagnetic and gravitational signals from a single astrophysical event will be revolutionary, but how do we find the former when we don’t know exactly where the latter is?
Interstellar space should be littered with debris ejected during the formation of planetary systems—but how much? Engelhardt et al. use solar system surveys and simulations to place an upper limit on the number density of asteroids and comets roaming the Milky Way without a parent star.
Some planets have atmospheres, and some don’t. What gives?
X-ray studies of galaxy clusters tell us how the extremely hot gas is distributed within these gigantic structures. Looking at these clusters across different redshifts, what does one find?
Bright surface features ring Titan’s north polar lakes and trace out dry lake beds. Could these same features in the equatorial desert regions indicate that what is now desert was once covered in liquid?
In this bite we dig into the details of the recent discovery of 7 habitable zone planets orbiting TRAPPIST-1.