This week will be the only chance to ever observe Comet Leonard — one of the brightest comets to pass by the planet Earth. Comet C/2021 A1 (Leonard) was discovered in January by Astronomer Greg ...

Telescopes around the world are now tracking a new visitor to our celestial neighborhood. Streaking through at a speed and trajectory that not even the Sun's immense gravity can capture, we will only ...

Sharp-eyed skywatchers are getting ready to see a comet glide past Earth next month, in its first visit in an estimated 70,000 to 80,000 years. The comet, called C/2021 A1 Leonard, was discovered at ...

No two comets are exactly alike. Of course, they can appear similar. Two decently bright comets that share a superficial resemblance are gracing our skies right now, in fact: C/2025 A6 (Lemmon) and ...