The cryovolcanic "centaur" comet 29P/Schwassmann-Wachmann has erupted four times in less than 48 hours, becoming unusually ...

Hale-Bopp originated in the Oort Cloud, a theoretical shell of icy planetesimals surrounding the sun in the outer reaches of ...

Potentially deadly comets could be spotted many years in advance by following the meteoroid trails they leave near Earth, new ...

Known as one of the top meteor showers of the autumn season because of its bright fireballs, the Leonids started to be ...

Comet C/2024 S1 (ATLAS) passed its closest point to Earth on Oct. 23, reaching a magnitude of 8.7, far too dim to be seen with the naked eye. Still, telescopes were able to catch a glimpse of the icy ...

The Halloween comet, C/2024 S1, disintegrated as it approached the sun. It's last fascinating moments were captured by the ...

But comets are known for their telltale tails, millions-of-miles-long debris trails of vaporizing ice, dust, and carbon dioxide. In a NASA video, Ryan Park, a near-Earth asteroid expert, sums up the ...

The so-called "Halloween comet" vaporized as it flew within 1 million miles of the sun on Monday, its destruction captured by ...

Comets have long been seen as omens and portents, and it's easy to understand why. They first appear as faint smudges of light in the sky, sometimes fading soon after and sometimes becoming brighter ...

"Over the past few days, it has broken into chunks as it approached the sun," NASA said. Astronomers have been tracking the so-called Halloween comet, also known as C/2024 S1, since it was discovered ...

Instruments from the U.S. Naval Research Laboratory have recorded the passage of comet C/2023 A3, Tsuchinshan-ATLAS, as it moved close to the sun. The observation by the LASCO telescope revealed a ...

While many dubbed it the "Halloween comet," the cosmic snowball of ice and dust more officially known as C/2024 S1 (ATLAS), disintegrated on Oct. 28 as it approached the sun. The comet's final ...