Earth objects, astronomers recently discovered a comet visiting from interstellar space. This is only the third interstellar ...

Astronomers tracking an interstellar object flying through the solar system think it comes from a star at least 8 billion ...

This NASA GIF shows the comet entering from the bottom right corner as it approaches perihelion -- the part of its orbit where it's closest to the sun -- before suddenly disappearing.

NASA said the Comet 12P/Pons-Brooks is racing toward its closest approach to the sun on its 71-year-long orbit.

Short-period comets need roughly 200 years or less to complete one orbit, long-period comets take more than 200 years, and single-apparition comets are not bound to the sun, on orbits that take ...

Stargazers will want to keep a close eye on the sky in the coming days. A comet with a 69-year orbit is set to pass by Earth.

Remember what feels like decades ago, when we were visited by a comet from another solar system in 2019? Interstellar comet ‘Oumuamua captured headlines when its cigar-shaped body was spotted ...

The strange outer-space object 'Oumuamua, which flew through our solar system in 2017, wasn't a spaceship. Scientists now have a simple explanation.

Though it's been nicknamed the "devil comet," there's no reason to fear Comet 12/P Pons-Brooks as it careens through space and nears a closer orbit of Earth. With a core of dust and gas, the comet ...

The interstellar comet 3I/ATLAS is currently inside the orbit of Jupiter (although on the other side of the solar system from the massive gas giant) and headed toward the inner solar system.

Stargazers will want to keep a close eye on the sky in the coming days. A comet with a 69-year orbit is set to pass by Earth.

Stargazers will want to keep a close eye on the sky in the coming days. A comet with a 69-year orbit is set to pass by Earth.