Polar Regions

The Arctic has warmed nearly four times faster than the rest of the planet over the last 40 years, according to research published Thursday that suggests climate models are underestimating the rate of polar heating.

Scientists at the Event Horizon Telescope (EHT) have imaged the distant blazar J1924-2914 with unprecedented angular resolution, revealing previously unseen details of the source structure. Blazars are powerful active galactic nuclei, in which supermassive black holes eject relativistic jets directed along our line of sight. A blazar can outshine its entire galaxy and may be observed from a distance of billions of light-years with our radio telescopes.

Scientists are flying research aircraft through the heart of Arctic storms this summer to better understand how weather systems are affecting polar sea ice.

Lawrence Livermore National Laboratory (LLNL) scientists have created a new adjoint waveform tomography model that more accurately simulates earthquake and explosion ground motions. The paper, published in the Journal of Geophysical Research: Solid Earth, was selected for an Editor's Highlight.

NASA's ShadowCam is heading to the Moon aboard Korea Aerospace Research Institute (KARI)'s Korea Pathfinder Lunar Orbiter (KPLO) mission. KPLO, also known as Danuri, launched at 7:08 p.m. EDT on a SpaceX Falcon 9 from Launch Complex 40 on the Cape Canaveral Space Force Station in Florida on August 4.