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 ...

It's Albert's birthday the day after tomorrow, and Darian doesn't know what to get him as a gift. He wants to make sure it's something special and meaningful, but he's running out of ideas. He only ...

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 ...

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 ...

I/ʻOumuamua, 2I/Borisov, and 3I/ATLAS. Each offers unique insights into shape, composition, and trajectory, revealing interstellar chemistry, comet formation, and cosmic dynamics. 3I/ATLAS, passing ...

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 ...

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 ...

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 ...

A closer looks at Mercury's tail. A closer looks at Mercury's tail. Mercury has been spotted cosplaying as a comet over the last few days when the sun's neighboring planet reached its nearest point to ...

This illustration depicts asteroid Phaethon being heated by the Sun. The asteroid’s surface gets so hot that sodium inside Phaethon’s rock likely vaporizes and vents into space, causing it to brighten ...

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 ...

This illustration depicts asteroid Phaethon being heated by the Sun. The asteroid's surface gets so hot that sodium inside Phaethon's rock likely vaporizes and vents into space, causing it to brighten ...