Astronomers have used two X-ray telescopes to study a neutron star and have discovered a link between it and mysterious fast radio bursts (FRBs). In October 2022, NASA's NICER and NuSTAR missions watched a type of neutron star called a magnetar for hours and detected the release of energy from its surface as it glitched, suddenly spinning faster. At the same time, radio telescopes detected an FRB from the star. These two events are connected.

We're light-years away from the closest stars, but in the billions of years of history in the Milky Way, our Sun has come much closer to other stars. For example, a star passes within 0.8 light-years every millions years and 0.16 light-years every 20 million years. These close passes have had a collective effect on the planets, shifting their orbits and helping to explain some of the eccentricities of the planets. Some of these might even have affected Earth's climate.