A11pl3Z's eccentricity is now estimated to be near 6.0, the highest seen yet, confirming its hyperbolic orbit.

Experts have confirmed that the mysterious object hurtling towards us, previously dubbed A11pl3Z, is an "interstellar object.

Two comets are headed for a historic flyby of Earth this week, and you don't want to miss them. Closest comet to fly past Earth since 1770 coming this week - Los Angeles Times ...

Comet C/2022 E3 (ZTF) will pass near ... The flyby is a once-in-a-lifetime chance to see the "green comet," which poses no risk to the planet, before it continues on its far-flung orbit around the ...

The Comet Siding Spring (C/2013 A1) is seen near Mars on Oct. 19, 2014 by a telescope with the Slooh Community Observatory during a rare flyby that scientists called a once-in-a-lifetime event.

Comet Siding Spring is due to make a close flyby of Mars on Oct. 19, 2014. Read Space.com’s complete coverage as it flies by the Red Planet.

When you hear “naked-eye” comet, a few others come to mind, including Comet Hale-Bopp’s flyby in 1997 and Halley’s Comet, which astronomers have documented for 2,000 years.

In a rare astronomical event, astronomers have confirmed the passage of an interstellar object through our solar system.

A comet's close shave with Mars this weekend could reveal some key insights about the Red Planet and the solar system's early days, researchers say. IE 11 is not supported.

Mars Probes Give Scientists Box Seats For Rare Comet Flyby : The Two-Way A "mountain-sized" comet known as Siding Spring will pass very close to the red planet, where orbiters from the U.S ...

So the comet’s flyby might have given researchers another clue in solving the mystery of how Mars’ atmosphere disappeared. The effects from the comet lasted about a day before Mars’ magnetic ...

As the comet approached its perihelion—the closest point in its orbit to the Sun—at around 7:30 a.m. ET on Monday, however, it was completely vaporized by the sun's intense heat and radiation.