Good news for Ukrainian night sky watchers: the phenomenon will be visible throughout our country, and you will have time to enjoy it before the curfew begins. 23:55 – end of the penumbral phase. During the full phase, the Moon will take on a deep copper-red color...
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Betelgeuse has always excited my imagination. I thought it had already exploded and clumps of its matter were drifting through space. But it turns out Betelgeuse simply has a blue companion that can affect the six-year cycle of brightness changes of the red star. The companion star was first...
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The photograph (taken with the LASCO telescopes on May 24, 2025) shows a spectacular coronal mass ejection, or prominence, that looks like a bird flying away from the Sun. The bird is 10 times larger than Earth. It is relatively cold solar material ejected into the magnetosphere of our star and...
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On March 29, a solar eclipse will be visible in Ukraine from 10:50 a.m. to 2:43 p.m. Kyiv time. The war is unlikely to end after this, but it will be interesting to watch the astronomical phenomenon....
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Many astronomers are currently watching the constellation Corona Borealis (CrB) for the long-awaited outburst of the repeating variable star T CrB. When that happens (possibly in the next few weeks), "T Cor Bor" is expected to brighten dramatically, a couple thousand times in a matter of...
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