Amendment 72: New Opportunity: A.17 Hydrosphere - NASA Science (.gov)

New Program Element A.18 Geosphere solicits proposals addressing one or more of the following sub-elements: Forecasting of geohazards and/or assessment of their impact on the Earth System. Proposals focused on this subelement may explore one or more geohazard types, and proposals that seek to characterize process-based connections between hazard cascades (for example, earthquake triggers leading to tsunami or landslides) are strongly encouraged. Proposals seeking to explore forecasting of geohazards could include volcanic deformation analyses or monitoring and modeling of pre-seismic activity. For proposals incorporating analyses of how hazards impact infrastructure or populations, proposers should seek to connect to societal impacts to align with Earth Science to Action objectives.

Lawrence Livermore National Laboratory researcher Isaiah Santistevan led the development of three-dimensional simulations exploring how a nuclear device could deflect or disrupt an asteroid threatening Earth. Credit: Blaise Douros/LLNL Lawrence Livermore National Laboratory (LLNL) researchers are developing three-dimensional simulations to examine how a nuclear device could be used to deflect or potentially disrupt an asteroid threatening Earth.

Orcas are hunting great White Sharks around the world, scientists confirmThe killing of great whites by orcas has been reported in the waters of South Africa, California, and Australia, and the implications that the hunting behaviour would have on the marine ecosystem have been considered. In fact, it all started back on May 3, 2017, when the body of a female great white, weighing 1,100 kilograms, washed ashore in Gansbaai, close to Cape Town, with a deep gash through which its 90-kilogram liver had been extracted. Five more corpses of great whites appeared with similar wounds in the coming months, as claimed by shark biologist Alison Towner of Rhodes University. Two adult males, called Port and Starboard, who are supposed to be brothers judging by their dorsal fins that fold differently, were identified as the most probable perpetrators. The connection was officially established in 2022 based on video footage of a drone that caught three orcas chasing and biting a 3-meter great white off Mossel Bay. The sharks quickly disappeared from Dyer Island, one of the best places in the world to witness a great white.