Comet Lemmon (C/2025 A4) will make its closest approach to Earth on November 8th, and is currently visible to the naked eye ...

Stargazers in Philadelphia and beyond will be treated to a rare celestial sight on Tuesday when Comet Lemmon makes its ...

A rare encounter of two comets this week will have stargazers in awe after nearly a year of no easily seen comets.

Astronomer Gianluca Masi and his Virtual Telescope Project will host a special livestream on Oct. 24 beginning at 1:30 p.m.

Comet Lemmon’s nucleus is believed to be just a couple of miles in diameter. This is relatively small compared to other previously visible comets, such as the giant Hale-Bopp, which was visible in the ...

An astrophotographer snapped a stunning shot of Comet Lemmon's flowing tail getting shredded by a strong gust of solar wind, ...

Comets Lemmon and SWAN are soaring past Earth in a rare cosmic treat. Here's best viewing times, tips and more in ...

A newly discovered comet is about to make its closest pass to Earth on Tuesday night. It should be visible over the Bay Area ...

A pair of once-in-a-lifetime comets are rocketing through our skies right now, and it's a rare treat because they won't be ...

Comets SWAN and Lemmon, both discovered this year, have arrived near Earth from the outer region of the solar system.

Comet Lemmon is being called the 'best and brightest' comet of the year with its distict green color, and it's not the only ...

This week's night sky will include a new comet that hasn't flown past Earth in over a thousand years -- and it won't be ...