WASHINGTON — After investigating the nature of a mysterious and apparently cigar-shaped object called ... while comets are a mixture of rock and ice, so-called ‘dirty snowballs ...

When astronomers first spied a weird cigar-shaped object speeding past the sun ... alien spacecraft (as some wags had suggested) but a small interstellar comet. "It's the only such object ...

Queen's University Belfast Professor Alan Fitzsimmons commented: “We have discovered that the surface of `Oumuamua is similar to small solar ... protected a water-ice-rich comet-like interior ...

Research has already helped us learn a lot about 'Oumuamua's rare cigar-like shape, what it's made of (ice with a carbon-rich surface) and its highly unusual orbit, which will take it out of our ...

Although thought to be an asteroid, Oumuamua’s elongated cigar shape hundreds of metres in length ... lacks significant amounts of water or ice, and that its surface is now dark and reddened ...

WASHINGTON (Reuters) - After investigating the nature of a mysterious and apparently cigar-shaped object called ... while comets are a mixture of rock and ice, so-called 'dirty snowballs ...

After investigating the nature of a mysterious and apparently cigar-shaped object called ‘Oumuamua ... while comets are a mixture of rock and ice, so-called ‘dirty snowballs,’” Knight ...