October 10, 2026: Oregon researchers developed a new family of materials to convert light into energy.
Tag: sun
2026, September 27: Daylight Shrinks After the Equinox as Autumn Advances
September 27, 2026: Daylight falls below 12 hours across the northern hemisphere. Learn why daylight and nighttime are not equal at the equinox and how the changing season affects skywatching.
2026, August 6: Summer Midpoint 2026 – Daylight Shortens Across the Northern Hemisphere
August 6, 2026: Summer reaches its midpoint as daylight continues to shorten across the Northern Hemisphere. Compare daylight lengths from Miami and Chicago to Anchorage and Auckland.
2026, July 18: Almanac: Moon, Venus, Saturn, Mars, Uranus, and Neptune for Mid-July
July 18, 2026: Follow Moon and Venus near Regulus after sunset and locate Saturn, Mars, Uranus, and Neptune before sunrise. Includes moon phases, earthshine, and observing tips.
2026: Sirius Heliacal Rising – Dates, Egyptian Calendars, and First Morning Appearance
Discover when Sirius first appears before sunrise in 2026. Learn how heliacal rising relates to ancient Egyptian calendars, seasonal cycles, and modern predictions by latitude.
2026, January 28: Sun, Moon, and Planets — Viewing Notes for Evening and Morning Skies
January 28, 2026: Daylight length, the gibbous moon, and planet visibility tonight. Find Jupiter, Saturn, and the moon, with notes on Mercury, Venus, Uranus, and Neptune.
2025, October 30: When Darkness Overtakes Daylight: Comparing Anchorage, Chicago, and Miami
October 30, 2025: Darkness grows longer than daylight as autumn progresses. Explore how daylight, twilight, and darkness change from Anchorage to Miami and mark the season’s long nights ahead.
2025, February 11: Daylight Longer than Darkness
February 11, 2025: At Chicago’s latitude, daylight is again longer than darkness.
2024, September 18: Autumn’s Diminishing Daylight
September 18, 2024: As Autumn nears, daylight noticeably decreases from week to week. At the same time darkness, part of nighttime increases.
2024, August 18: Mercury at Inferior Conjunction
August 18, 2024: Mercury is at inferior conjunction today, between Earth and Sun at 8:58 p.m. Central Time.