Category Astronomy/Space

1.Evolution of the magnetic field in two simulations of the formation of active solar regions. Top row: non-eruptive scenario where the configuration remains stable. Bottom row: eruptive scenario.
Credit: © E.Pariat, figure adapted from Pariat & al, A&A 2017
2. Time evolution of the value of a quantity based on magnetic helicity, for the various numerical simulations tested. This predictive quantity has high values before the eruption in the eruptive simulations (red, orange and yellow curves) and low values in the non-eruptive cases (black, violet, blue and cyan curves).
3. Artist’s impression of a solar flare and the twisted magnetic field that carries away the ejected solar material.

Light curve of the microlensing event OGLE-2016-BLG-1469. The upper panel shows the enlarged view of the anomaly around the peak. The two lower panels show the residual from the binary-lens models with (orbit+parallax) and without (standard) considering higher-order effects. Credit: Han et al., 2017.

A University of Texas at San Antonio (UTSA) and Southwest Research Institute (SwRI) team modeled a natural water-cracking process called radiolysis. They applied the model to the icy bodies around our solar system to show how radiation emitted from rocky cores could break up water molecules and support hydrogen-eating microbes. Credit: Southwest Research Institute

A visualization of a supercomputer simulation of merging black holes sending out gravitational waves. Credit: NASA/C. Henze Read more at: https://phys.org/news/2017-05-uncover-gravitational-characteristics.html#jCp