Astronomers have discovered a massive, double-lobed radio jet stretching 200,000 light-years from a quasar that existed when the Universe was just 1.2 billion years old. This groundbreaking find, made ...

This 2023 satellite photo shows the heart-shaped Spirit Lake, which was transformed by the cataclysmic eruption of Mount St.

Mount Spurr, whose volcanic ash darkened Anchorage’s skies in 1953 and 1992, may be building toward another eruption.

A decade ago, physicists using twin detectors in Washington State and Louisiana detected gravitational waves—subtle ripples ...