Comets

Researchers are calling on amateur astronomers to help photograph the broken tail of a comet on track to pass by Earth this spring.

Comet Wild 2 formed 4.5 billion years ago and is a relic of the birth of the solar system. In 2006, NASA brought pieces of it down to Earth.

On Friday, Dec. 8, Halley's Comet reaches its farthest point from the sun and begins its journey back through the solar system.

What is causing the structure of the dust to evolve, and where exactly the dust comes from, is still a mystery.

The exact cause of 'Devil Comet' 12P/Pons-Brooks' flare-ups is unknown, though the best guess is that perhaps a fissure has developed on the comet's nucleus due to a build-up of gas.

An icy volcanic comet that is three times as large as Mount Everest, nicknamed the "Devil Comet," erupted again Nov. 14. This is the fourth explosive event for 12P/Pons-Brooks since July 2023.

Scientists suspect that comets may have delivered the key ingredients for life on Earth, and new research outlines how exoplanets could have received these deliveries, too.

The massive volcanic comet 12P/Pons-Brooks, which grows giant horns when it erupts, has exploded for a third time in five months as it continues to race toward the sun.

The comet C/2023 H2 (Lemmon) will reach peak brightness on Friday, Nov. 10, illuminating the sky and possibly becoming visible with the naked eye.

The cryovolcanic comet 12P/Pons–Brooks, which will make its closest approach to Earth next year, has re-sprouted its distinctive "horns" after its second major eruption in four months.