NASA-supported scientists have provided new information about how the early Earth may have acquired some elements necessary for the planet to become habitable. They also suggest a new role for Jupiter in the distribution of these elements throughout the young solar system. The study, published in Science Advances, examines this history by looking at the ratio of phosphorus to nitrogen in iron meteorites and in younger objects known as chondrites.

Scientists at the SETI Institute recently searched for technological signals from 3I/ATLAS, the third interstellar object observed in our solar system. Using the Allen Telescope Array (ATA) at the Hat Creek Radio Observatory in Northern California, the team scanned a wide range of radio frequencies for signs of extraterrestrial technology and found none, as expected based on other astronomical observations showing that the object exhibits natural comet-like composition and behavior. The paper is published in The Astronomical Journal.

The weather on Earth can get pretty messy sometimes. But in space, it can be wild, and the effects can be far-reaching. Solar flares, giant explosions on the sun, can send out streams of energy that block radio communications and fry satellite electronics. Geomagnetic storms, caused by variations in solar wind, can mess with GPS signals and spark current surges on Earth that overload power grids.

Scientists from the Space Telescope Science Institute (STScI) in Baltimore, Maryland, sought to study one stellar subject and ended up finding something even more exciting. The team’s results published today in Astronomy & Astrophysics.

Plastic pollution is widespread in the world’s oceans. A new study of northern fulmars from the North Atlantic shows that plastic pollution is also common in northern marine areas. The research is published in the journal Marine Pollution Bulletin.

A Dartmouth College study is the first to map the interplay of personal choice and social networks that has led to the United States being one of the world’s most heavily armed countries, with 120 firearms for every 100 people. The researchers describe in Science Advances how individual incentives to buy firearms can lead to a phenomenon they call “overarming.” In an overarmed society, the collective cost of firearm ownership outweighs the individual benefits of possessing a gun.

The largest magnetic map of the universe ever produced—five times larger than all previous efforts combined—marks the beginning of a new generation of research into intergalactic magnetism. Magnetic fields influence how galaxies grow, how matter moves through space, and how the universe has evolved over billions of years.

Southwest Research Institute, or SwRI, is studying impact flashes generated by high-speed collisions. One application of understanding impact flashes is to remotely identify what materials are involved in the collisions. Advances in understanding optical impact flashes can be highly beneficial for missile defense, making it possible to determine the composition of an intercepted missile and its payload.