Posts by 

Bruce McClure

Moon follows Jupiter April 11-12

Jupiter rises before the moon. Then, as Earth spins under the sky, the moon chases Jupiter for the remainder of the night.

Full moon near Jupiter April 10-11

Full moon comes on April 11 at 6:08 UTC. For the Americas, that means full moon happens tonight. As the 1st full moon of northern spring, it fixes the date of Easter Sunday.

Mercury after sunset in early April

For northerly latitudes, we're now in the middle of Mercury's best showing in the evening sky for 2017.

Moon and Mars at nightfall March 30

Look in your western sky at nightfall and early evening. Mars will be the reddish "star" right next to the waxing moon.

Moon, Mercury, Mars on March 29

It's a very slim crescent moon you'll find in the west - shortly after sunset - Wednesday evening. Mercury is exceedingly near the sunset glare. Mars is higher up.

Planets Mercury and Uranus at dusk

Innermost Mercury - and distant Uranus - are low in the western sky after sunset. Start looking for them as soon as your sky begins to darken.

Venus after sunset and before sunrise!

The planet Venus is now appearing in the west after sunset and in the east before sunrise. Don't believe it? Astronomer Bruce McClure reports on his observation.

Arcturus, a northern springtime star

Orange Arcturus is the constellation Bootes the Herdsman's brightest star. Look for it in the east around nightfall.

Equal day and night on equinox?

The sun is a disk, not a point of light. Plus Earth’s atmosphere refracts sunlight. For both reasons, we have more than 12 hours of daylight on the day of an equinox.

Venus about to leave evening sky

And Mercury is climbing into it. By late March, Venus will have moved to the east before dawn as Mercury stages its best evening apparition of the year for northern observers.

2026 Donation Campaign

If EarthSky has ever helped you discover something new, prepare for an eclipse, spot a planet, or simply inspired a moment of wonder, today is the perfect day to give back. Your donation helps keep trusted science news, expert night sky guides, and independent science journalism free for everyone.

Please help keep EarthSky going by donating today!

Please help keep

EarthSky going!

If you've already donated, we apologize for the popup and greatly appreciate your support.