We have known for a while that asteroid 3200 Phaethon acts like a comet. It brightens and forms a tail when it's near the Sun, and it is the source of the annual Geminid meteor shower, even though ...

Researchers are asking amateur astronomers to help photograph the broken tail of a comet on track to pass by Earth this spring. When you purchase through links on our site, we may earn an affiliate ...

At a distance of 64 million miles (103 million kilometers) from Earth, the comet is still quite far but close enough for ...

Comets aren't the only celestial object that can carve a stunning tail across the sky, as pictures snapped of Mercury as it passed close to the sun show a long tail dragging out behind the planet. The ...

New observations of the rock show its comet-like tail is not made of dust, possibly altering the origin story of the Geminid meteor shower. Reading time 2 minutes A comet-like asteroid has been ...

Is 3I/Atlas an alien spacecraft or just a really interesting rock hurling through the cosmos? That debate has been raging ever since the comet, only the third known interstellar object to enter our ...

Mercury's comet-like tail is made predominantly of sodium ions. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Mercury has been spotted ...

An intriguing new celestial object known as Comet Nishimura is enduring a bumpy ride through the inner solar system despite having its tail torn off by an outburst from the sun. Japanese amateur ...

The crisp fall night skies will be lit up with streaks of light and color during the Orionid meteor shower this month. Set to peak on Oct. 21-22 and continue through early November, Earth will ...

We have known for a while that asteroid 3200 Phaethon acts like a comet. It brightens and forms a tail when it’s near the Sun, and it is the source of the annual Geminid meteor shower, even though ...

Scientists thought asteroid Phaethon, which is the source of the Geminid meteor shower, was shedding dust to form a comet-like tail, but NASA solar observatories show the tail isn't dusty. A weird ...