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Uranus, Neptune, Pluto: A longer view

Beloved astronomer Guy Ottewell announces his newest book.

See it! Last night’s moon and Venus

Photos from EarthSky friends around the world of Sunday evening’s spectacular moon and planet Venus, and Saturday’s moon and Mercury. Thanks to all who submitted or posted to our Facebook page! Miss then? Try again Monday.

All you need to know: Delta Aquariid meteors in 2018

With the long-running Delta Aquariid meteor shower already in progress, and the moon in a waxing crescent phase – and gone from the sky after midnight – we’re beginning to receive meteor photos.

How the moon’s orbit makes supermoons

An explanation of why extra-close perigees and extra-far apogees happen at new and full moons.

2018’s closest new supermoon on July 13

The closest new moon of 2018 – a supermoon – comes on July 13. You won’t see it, but Earth’s oceans will feel it. Then, 2 weeks later, we have the year’s farthest full moon.

From Pluto, Earth to transit sun on July 12

Earth transits seen from Pluto are rare. The last one happened in 1931, a year after Clyde Tombaugh discovered Pluto. It won’t happen again for 161 years.

Northern Cross: Backbone of Milky Way

On summer evenings, look for this star pattern in the east, sideways to the horizon.

Heads up! It’s a month of eclipses

Partial solar eclipse July 13. Total lunar eclipse July 27. Partial solar eclipse August 11.

How often are there 3 eclipses in a month?

In a calendar month, 3 eclipses are rare. But in a lunar month, 3 eclipses are are more common. From 2000-2050, it happens 14 times.

Why no eclipse every full and new moon?

In 2018, there are 13 full moons and 12 new moons, but only 5 eclipses – 2 lunar and 3 solar.

See it! Tuesday’s moon near Aldebaran

Aldebaran represents the fiery red eye of the Bull in the constellation Taurus. Check out these dramatic photos of the moon and Aldebaran close, on Tuesday morning.

Double moon on July 27? August 27?

Let’s be hoax-busters. This one is sure to be circulating, since it circulates every year. No. Mars will not be as large as the moon on July 27, August 27, or ever.

Mars brighter in 2018 than since 2003

We’re fielding emails about a bright red “star” ascending in the east in mid-evening or later. What is it!? It’s Mars, and it’ll shine brilliantly throughout July and August.

Close and far Martian oppositions

Want a more numerical explanation for why 2018 is a great year to view Mars? This post is for you.

Heads up on July 2019 total solar eclipse

A 5-minute video from the European Southern Observatory on the 2019 eclipse in South America and the South Pacific. Eclipse map, and more.

EarthSky’s 2018 meteor shower guide

Bad news. In 2018, moonlight will obscure the Delta Aquarid’s nominal peak in late July. Good news! The Delta Aquarids will still be flying at the moon-free Perseid meteor shower peak in early August.

When’s the next total solar eclipse for North America?

On August 21, 2017, millions across the U.S. witnessed an awe-inspiring total solar eclipse. When will we see the next one?

See it! This weekend’s moon near Mars

July 2018 will be Mars’ month, when it’ll glow brighter than the bright planet Jupiter … brighter and redder than it’s been since 2003. Photos of this weekend’s moon and Mars from the EarthSky community, here.

July guide to the bright planets

Here’s how to find the bright planets – Mercury, Venus, Mars, Jupiter, Saturn – in July 2018.

See it! Last night’s full moon and Saturn

It was tough to catch Saturn in the moon’s glare last night, but we received some stunning shots of the full moon. Keep watching this post. More pics expected today! Thanks to all who submitted.