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https://www.space.com/summer-solstice-when-what
What is the summer solstice and when does it occur? | Space
Jan 12, 2026 - The summer solstice marks the start of astronomical summer and the longest day of the year. Here we explore when the summer solstice occurs and why.
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https://www.space.com/sunspots-formation-discovery-observations
Sunspots: What are they, and why do they occur? | Space
Apr 13, 2023 - Sunspots are cooler, planet-size regions of strong magnetic fields on the surface of the sun. Explore sunspots in more detail with our comprehensive guide.
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https://www.space.com/15689-lunar-eclipses.html
What are lunar eclipses and how do they occur? | Space
Mar 4, 2026 - Lunar eclipses occur when Earth blocks the sun and casts a shadow over the surface of the moon. We explore the different types of lunar eclipses here.
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https://www.space.com/what-is-perihelion
Perihelion: What is it and when does it occur? | Space
Jan 15, 2026 - Perihelion is the point at which an orbiting body is closest to the sun. The word comes from Greek and literally means around (peri) the sun (helios).
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https://he.net/releases/2011-01-26.html
Hurricane Electric Predicts Exhaustion of IPv4 Address Space will Occur Next Week
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