SUNSET: 
This Week's Sky at a Glance, October 6 – 14
Want to become an amateur astronomer? Learn your way around the constellations! They're the key to locating everything fainter and deeper to hunt with binoculars or a telescope.
This Week's Sky at a Glance, September 29 – October 7
Sky at a Glance, Friday, September 29 -- As the stars come out in late twilight, look high above the Moon for Altair.
This Week's Sky at a Glance, September 22 – 30
Friday, September 22 • Low in the west-southwest during twilight, spot the thin waxing crescent Moon. Can you see Jupiter to the lower right of it, by about 7°? (for North America.) • Equinox: Autumn begins in the Northern Hemisphere, and spring in the Southern Hemisphere, at 4:02 p.m.…
This Week's Sky at a Glance, September 15 – 23
Saturn (magnitude +0.4, in Ophiuchus above Scorpius) glows in the south-southwest at dusk. Antares twinkles 13° to Saturn's lower right.
This Week's Sky at a Glance, September 1 – 9
The waxing gibbous Moon is appears equally distant from Saturn, well to its right, and Altair, high to its upper left.
This Week's Sky at a Glance, August 25 – September 2
Look low in the west in twilight for the waxing crescent Moon. It forms a triangle with Jupiter and Spica below it.
This Week's Sky at a Glance, August 18 – 26
The Milky Way runs from Sagittarius in the south, up and left across Aquila and the Summer Triangle very high in the east, and down through Cassiopeia to Perseus low in the north-northeast.
2017's Solar Eclipse for the Rest of Us
Totality watchers get the best show, but a far greater number of people will be in partial eclipse territory. Here's how to make the most of it.
This Week's Sky at a Glance, August 11 – 19
The Perseid meteor shower should be at its maximum late Friday and Saturday nights, August 11-12 and 12-13.
This Week's Sky at a Glance, August 4 – 12
Saturn glows in the south at nightfall. Fiery Antares, less bright, twinkles 13° to Saturn's lower right.
This Week's Sky at a Glance, June 30 – July 8
The Moon forms a broad triangle with Jupiter and Spica in the southwestern sky during twilight and nightfall on July 1, 2017.
This Week's Sky at a Glance, June 16 – 24
The term "Midsummer's Night" is left over from when the seasons were commonly defined as beginning and ending around the cross-quarter days.
This Week's Sky at a Glance, June 9 – 17
For an easy-to-use constellation guide covering the whole evening sky, use the big monthly map in the center of each issue of Sky & Telescope, the essential guide to astronomy.
This Week's Sky at a Glance, June 2 – 10
For an easy-to-use constellation guide covering the whole evening sky, use the big monthly map in the center of each issue of Sky & Telescope, the essential guide to astronomy.
This Week's Sky at a Glance, May 26 – June 3
Friday, May 26 • While twilight is still bright, can you catch the thin crescent Moon just above the west-northwest horizon? The Moon is only about 1¼ days old as seen at the time of dusk for North America (because new Moon was at 3:44 p.m. EDT yesterday the…
This Week's Sky at a Glance, May 19 – 27
Three zero-magnitude stars shine after dark in May: Arcturus high in the southeast, Vega much lower in the northeast, and Capella in the northwest.
This Week's Sky at a Glance, May 12 – 20
Three zero-magnitude stars shine after dark in May: Arcturus high in the southeast, Vega much lower in the northeast, and Capella in the northwest.
This Week's Sky at a Glance, May 5 – 13
Friday, May 5 • Above the Moon tonight is Leo's tail star, Denebola (by about a fist at arm's length). Far to the Moon's lower left at dusk is bright Jupiter, with Spica farther on, as shown here. Saturday, May 6 • The Moon tonight forms a gently curving…
This Week's Sky at a Glance, April 28 – May 6
Jupiter, among the stars of Virgo, shines brightly in the southeast at dusk this week. It's highest in the south by 11 or midnight daylight saving time.
Why We Marched for Science
“OBJECTIVE REALITY EXISTS.” It was a protest sign that I never imagined I would carry on a crowded all-night bus to a march for science in Washington, DC.
