Comet SWAN25F is currently best seen low in the morning sky and views are expected to improve over the coming weeks. If you ...

In the days following its perihelion, people around the world snapped some stunning pictures of the comet and its spectacular tail. While not visible from the Northern Hemisphere, people in the ...

The newly discovered comet SWAN25F is delighting amateur astronomers, now visible and trackable with standard backyard equipment.

The boiling is so intense, that the world has developed a comet-like tail stretching 350,000 miles behind it, scientists announced on Tuesday. Don't retire on this planet The planet, called WASP ...

Those were long-exposure images, meaning the color and notable tail captured by the camera is deceptive to the naked eye. If spotted, the comet is expected to take on a circular cloud-like shape ...

The “comet of the century” that was likely last seen by the Neanderthals seemed to develop a physics-defying second tail as it reached its closest point to Earth in over 80,000 years.

It has long been assumed that the gases of a comet tail are pushed away from the comet by the pressure of light from the sun. It now appears that many tails are caused by a wind of charged particles ...

The 15 new asteroids are part of a rare lineup of asteroids that NASA calls “active” asteroids due to their “activity” – the comet-like tails of gas and dust that follow them.

Following perihelion, the comet showed signs of disintegration but still put on a dazzling display of bright tails. As it heads toward the edge of the solar system, it will slowly start to fade.

As the comet sped towards the Sun, the temperature increase evaporated large chunks of ice from its surface, feeding its outgassing tail and the hazy glow around its nucleus. But in early January ...

Comet flight engineer Alan Johnson ... Within a month, the navy had brought up a big section of Yoke Peter’s tail, along with skin from the fuselage and miscellaneous other parts.