Something strange happened to this galaxy, but what? Known as the Cigar Galaxy and cataloged as M82, red glowing gas and dust are being cast out from the center. Although […]

How does a total solar eclipse end? Yes, the Moon moves out from fully blocking the Sun, but in the first few seconds of transition, interesting things appear. The first […]

Only those along the narrow track of the Moon’s shadow on April 8 saw a total solar eclipse. But most of North America still saw a partial eclipse of the […]

Baily’s beads often appear at the boundaries of the total phase of an eclipse of the Sun. Pearls of sunlight still beaming through gaps in the rugged terrain along the […]

Start at the upper left above and you can follow the progress of April 8’s total eclipse of the Sun in seven sharp, separate exposures. The image sequence was recorded […]

What wonders appear when the Moon blocks the Sun? For many eager observers of Monday’s total eclipse of the Sun, the suddenly dark sky included the expected corona and two […]

Captured in this snapshot, the shadow of the Moon came to Lake Magog, Quebec, North America, planet Earth on April 8. For the lakeside eclipse chasers, the much anticipated total […]

How does a comet tail change? It depends on the comet. The ion tail of Comet 12P/Pons–Brooks has been changing markedly, as detailed in the featured image sequenced over nine […]

Will the sky be clear enough to see the eclipse? This question is already on the minds of many North Americans hoping to see tomorrow’s solar eclipse. This question was […]

The arms of a grand design spiral galaxy 60,000 light-years across are unwound in this digital transformation of the magnificent 2005 Hubble Space Telescope portrait of M51. In fact, M51 […]