Comets are among the most exciting celestial objects to watch. These visitors from the outer reaches of the solar system are ...

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

Taking into account a phenomenon first identified by Sir Isaac Newton and later confirmed by Albert Einstein, researchers ...

Tuesday marks the tenth anniversary of a huge astronomical milestone: the first and only time we have landed on a comet. The ...

Comet Tsuchinshan-ATLAS is no longer a naked-eye object, but if you have binoculars or a small telescope, it’s still worth finding. This long-period comet from the Oort Cloud — a sphere around ...

Comet A3 is a long-period comet from the Oort Cloud, a sphere around our solar system home to millions of comets. It's in an orbit of roughly 80,000 years. It was discovered in January 2023 by ...

Stargazers are in for a treat this October as a long period comet will be visible in the night sky this week with the evening of October 15 being the best night to spot it.

Any comet with a period longer than 200 years is known as a long-period comet, and these are the hardest to predict. Most long-period comets pose no threat to Earth. They might appear bright in ...

That process produces a tail of debris that becomes visible as a comet. The 20th-century Dutch astronomer Jan Oort, intrigued by the long-period comets, wrote a paper on them in 1950. He noted ...

While invisible to us, this cloud is the source of long-period comets that occasionally visit our inner solar system. These long-period comets, with orbits spanning hundreds to millions of years ...