I’m old enough to remember when the solar system was described as a fairly well-ordered place. There was the Sun, the rocky inner planets, an asteroid belt of smaller rocky objects, four large gaseous/icy planets, the since demoted Pluto, and…
Year: 2025
A New Moon Race?
When the Apollo astronauts landed on the moon between 1969 and 1972, they all landed fairly close to the lunar equator. The largest excursion north or south was that of the Apollo 15 mission. It landed 26 degrees north of…
Perihelion Day
On January 4th, 2025 at 8:28 a.m. EST, Earth will reach perihelion, the point in its orbit when it is closest to the sun. Then why is it so cold, at least in the northern hemisphere? Winter—indeed all seasons—don’t depend…
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