Whats Up

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 […]

Changes in the alluring solar corona are detailed in this creative composite image mapping the dynamic outer atmosphere of the Sun during two separate total solar eclipses. Unwrapped from the […]

In dark evening skies over June Lake, northern hemisphere, planet Earth, Comet 12P/Pons-Brooks stood just above the western horizon on March 30. Its twisted turbulent ion tail and diffuse greenish […]

What created this unusual celestial firework? The nebula, dubbed Pa 30, appears in the same sky direction now as a bright “guest star” did in the year 1181. Although Pa […]