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 ...

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 ...

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

(KXAN) — We’ll kick off this year’s Cinco de Mayo festivities with an exciting celestial event, the Eta Aquarids meteor shower, which is expected to peak early Tuesday morning. Halley’s comet is one ...

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 ...

NASA has taken to its YouTube channel to post a video answering the question, "What's the Difference Between Asteroids, Comets, and Meteors?". Space can be quite confusing to those that aren't ...

A serendipitous flythrough of the tail of a disintegrated comet has offered scientists a unique opportunity to study these remarkable structures. A serendipitous flythrough of the tail of a ...

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 ...

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 ...