Two comets are headed for a historic flyby of Earth this week ... The next day, at 7:30 a.m. PDT, a second, smaller comet known as P/2016 BA14 will come even closer --flying within 2.2 million ...

Comet 252P's flyby was the fifth-closest in recorded history, scientists have said. The Slooh views show the roughly 750-foot-wide (230 meters) 252P/LINEAR as a bright object with a noticeable tail.

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 sun. The comet, officially known as C ...

This is what happened to comet ISON, which was violently ripped apart during a solar flyby in 2014, according to the European Space Agency. Scientists previously hypothesized this would also ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. The last time Comet C/2022 E3 (ZTF) passed by Earth, our human ...

A rare close flyby of a comet near Mars put NASA's orbiters in a potentially dangerous situation, but also allowed them to study the moving space object. Freelance writer Amanda C. Kooser covers ...

12P made its closest approach to the sun since 1953 on April 21 this year when it slingshotted around our home star and began heading back out toward the outer solar system. On June 2, the comet ...

The comet "is packed with materials that have ... Masi also noted that the full moon will be in the sky on K2's flyby date, which could make it "significantly" harder to view, he explained.

The arrival of a "mountain-sized" comet, Siding Spring (C/2013 A1), is made all the more extraordinary by the fact that humans — who were busy refining their stone-tool-making skills the last ...

Watch Comet 96P/Macholz brighten as it flies by the sun in these time-lapses captured by the ESA/NASA Solar and Heliospheric Observatory (SOHO) and Solar and Terrestrial Relations Observatory (STEREO) ...