Learn how space weather starts on the Sun, travels through the solar system, and affects satellites, power grids, and GPS on Earth.

Learn what the habitable zone is, why it matters in astronomy, and how scientists use it to search for potentially life-supporting exoplanets.

Learn how exoplanets are named, who approves them, and why most distant worlds are known by catalog codes instead of poetic labels.

Learn how geomagnetic storms form, what triggers them, and why solar eruptions can disrupt satellites, power grids, and communications.

Scientists use spectroscopy, transit observations, and atmospheric modeling to detect water on distant worlds and separate true signals from false positives.

Discover the closest known exoplanets to Earth, how astronomers measure their distance, and why Proxima Centauri b stands out.

A clear guide to how astronomers search for life beyond Earth, from telescopes and biosignatures to planetary missions and laboratory tests.

Learn how to prepare for a solar storm with practical steps for power, communications, devices, and household emergency planning.

Scientists test Enceladus for life by analyzing plume chemistry, ocean chemistry, and biosignatures that could reveal biology beneath the ice.