Building compact behavioral programs. (A) Top: The space of strategies for solving a task can be large, with many strategies achieving reasonably good performance. Bottom line: Studying relationships between strategies can provide insight into behavioral variability across animals and tasks. (B) General task configuration: An animal makes inferences about hidden properties of the environment to … Read more
Credit: NASA For the past seven decades, astrophysicists have theorized the existence of “kugelblitze,” black holes caused by extremely high concentrations of light. These particular black holes, they speculated, could be related to astronomical phenomena such as dark matter, and have even been suggested as the power source of hypothetical spacecraft engines in the distant … Read more
Artist’s impression of a microlensing event caused by a black hole observed from Earth toward the Large Magellanic Cloud. Light from a background star located in the LMC is bent by a putative primordial black hole (lens) in the galactic halo and magnified when observed from Earth. Microlensing causes very characteristic variation in the brightness … Read more
S-BGLS periodograms of YV2 for the star HD48948 focusing on three frequency intervals (7.3, 38 and 151 d). The absolute value of log P has no meaning; instead, the relative values of logP matter. The signal observed at about 42 d in the middle panel represents the transient activity feature. Credit: Monthly Notices of the … Read more