This Tuesday the 28th we will see the Moon rise in twilight as far north as it possibly can. Do you know why?
Before the advent of computers or even a working theory of the solar system, the ancients predicted solar eclipses. How did they do it?
Observers across much of the U.S. and Canada have a unique opportunity Monday night, November 20–21, to see Uranus's brightest moon occult a star.
Jupiter's Great Red Spot may be reaching a milestone this year by shrinking to its smallest size in recorded observational history.
The Great Square, now upright, guides your way down to Fomalhaut and Diphda and, farther down, Alpha Phoenicis – a chance to add a new constellation to your life list. And plan to catch the Moon-Venus pairing in early dawn on the 9th.
Alien invasion or flares from satellites in multiple orbits? It depends on your point of view. We also check in on Comet Lemmon, poised to possibly reach binocular-visibility.
The full Moon on October 28th shines near full Jupiter at opposition this week. Telescopically, Jupiter this week is as big as you'll ever see it,
If you'll be in the path of the October 14, 2023, annular eclipse, here's what you can look for as the Moon covers the face of the Sun.
If you can't see the annular solar eclipse in person, we've got some online viewing opportunities for you.
The week's big event is the Moon stepping on the Sun on Saturday the 14th. But the Moon's not done. Several days later it steps squarely on the handle of the Sagittarius Teapot, then on Herman's Cross. Show-off. Image: S&T's Sean Walker resolves Io half lit as it slips into Jupiter's shadow.