Astronomers posed over the past decade that dark comets, or objects that resemble asteroids but move like comets, may exist.

Researchers have doubled the number of known dark comets, identifying two distinct types: larger ones in the outer solar system and smaller ones in the inner solar system. This discovery raises new ...

The South American nation of Argentina may not be a country that instantly comes to mind when one thinks of aviation and ...

NASA is investigating "dark comets," mysterious celestial bodies lacking the bright tails typical of comets. With ...

When I asked readers on social media for suggestions about the coolest things they’ve seen in spaceflight during the last 25 ...

Across the globe in 2024, Reuters photographers took hundreds of thousands of images of our changing world - its daily life, ...

NASA's discovery of dark comets reveals potential origins of life on Earth, but their unpredictable orbits raise concerns ...

Back 2017, a non-awaited visitor with an oddly elongated shape zipped through the solar system. The interstellar object, ...

In the fall of 1969, scientists at NASA's Jet Propulsion Laboratory (JPL ... the first data on the tenuous solar atmosphere and later recorded the passage of Comet Kohoutek’s tail in 1974 (in ...

Comets, often described as the solar system's "dirty snowballs," are icy bodies made of rock, dust and ices. These relics of ...