Wausau Pilot & Review Central Wisconsin stargazers are in for a rewarding week of celestial events — including the peak of ...

Science and maintenance work continue on the International Space Station, but updates are still halted due to the U.S.

The world's alarm bells are ringing loudly. What follows is a list of really good reasons to despair – and an excellent argument for why you absolutely should not.

Comet C/2025 A6 (Lemmon) is this year’s brightest comet visible from Earth—an icy relic from the solar system’s origins that ...

Comet Lemmon, also designated C/2025 A6, was discovered in January by a telescope scouring the night sky for near-Earth ...

Comet C/2025 R2 (SWAN) was discovered on Sept. 10 by Ukrainian amateur astronomer Vladimir Bezugly. It has brightened ...

Chicago-area residents could be treated to a wonderful nighttime display as Comet Lemmon makes its closest approach to Earth in coming days.

Look toward the northeast in the direction of Ursa Major (the Big Dipper) about 25 degrees above the horizon. The comet will ...

Two bright green comets are streaming through the skies and are visible to skygazers in the Northern Hemisphere.

Residents of northern U.S. states could have the opportunity to see the northern lights tonight. Here's what to know about ...

Residents of several northern U.S. states could have the opportunity to see the dazzling northern lights tonight. Here's what ...