This image from the Wide Field Imager attached to the MPG/ESO 2.2-metre telescope at ESO’s La Silla Observatory shows the spectacular globular star cluster Messier 4. This great ball of ancient stars is one of the closest of such stellar systems to the Earth and appears in the constellation of Scorpius (The Scorpion) close to…
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This terrific image of the Orion’s sword was taken on January 7, 2019 by Rick Foster of Markham, Ontario. Even binoculars will reveal that the central patch of light is the splendid Orion Nebula, also known as Messier 42. The grouping of bright stars at bottom right are “the Lost Jewel of Orion’s Sword”, particularly…
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This full-disk image of the sun in visible wavelengths was taken by the Solar Dynamics Observatory satellite on August 29, 2021. It shows the huge sunspot group designated AR2860 that is currently visible by anyone using safely filtered telescopes, pinhole projectors, and eclipse viewers. That active region is emitting strong M-class flares. Visit Spaceweather.com and…
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