This week, people around the world are getting a special treat from space. A rare green comet is passing close to Earth, glowing brightly in the night sky. Astronomers say this comet, named C/2025 A6 (Lemmon), is one of the oldest visitors in our solar system.
The comet will make its closest pass to Earth on October 21, giving stargazers a clear view with binoculars or small telescopes. It can be seen as a soft green light moving slowly across the stars. Scientists say the green color comes from gas and dust released from the comet’s icy surface as it warms up near the Sun.
Experts at NASA say the comet comes from the outer parts of the solar system, an area full of icy rocks and frozen gas. It takes thousands of years for such comets to circle the Sun and return. That’s why this is a once-in-a-lifetime event for most people.
Sky-watchers are excited to see this beautiful sight. In places with clear skies and low light pollution, the comet can be spotted just after sunset. Many people have shared stunning pictures of the glowing green tail online, calling it “a magical moment.”
Astronomers remind everyone to enjoy the view while it lasts because the comet will soon move away and may not return for thousands of years.
