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Editors of EarthSky
Mars closest to Earth on January 12, 2025
The Mars opposition - when Earth flies between the sun and Mars - comes on January 15-16, 2025. But January 12, 2025, finds Mars closest to Earth.
January 12, 2025
Too cold to snow? Do cold temperatures prevent snow?
Can it ever be too cold to snow? The fact is, no matter how cold a snow-producing cloud is, if it has a source of water, it can build big snowflakes.
January 12, 2025
Capella is sometimes called the Goat Star
The 6th-brightest star in the night sky, Capella, in the Northern Hemisphere constellation Auriga the Charioteer, is also a point of the Winter Hexagon.
January 10, 2025
Venus now brilliant in the evening sky
Look for Venus after sunset! It's high in January's sky for all to see. It'll be farthest from the sunset today. Look west for a dazzling point.
January 9, 2025
Meteor shower guide 2025: Next up is the April Lyrids
The 2025 Quadrantid meteor shower is best before dawn on January 3. Your 2025 meteor shower guide here.
January 5, 2025
Earth at perihelion – closest to sun – on January 4
Every year in early January, Earth reaches its closest point to the sun in an event called perihelion. In 2025, it's on January 4.
January 3, 2025
January birthstone: The colorful garnet gemstone
Garnets, the beautiful January birthstone, are often thought to be red gemstones. But they also come in yellow, green, orange, brown and black.
January 2, 2025
Venus brightest in evening sky mid-February, 2025
When is Venus brightest in 2025? In the evening sky, it's around February 14, 2025. Then, Venus will be at its brightest in the morning sky in April 2025.
January 1, 2025
New Year’s Star Sirius and 2 planets ring in 2025
Entertain your friends on New Year's Eve by showing them the New Year's Star and 2 bright planets! Sirius is highest at midnight.
December 31, 2024
Why does the New Year begin on January 1?
Why does the New Year begin on January 1? The tradition stems from the festival of Janus, the Roman god of past and future.
December 31, 2024
