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No double moon in 2018, or ever

2018 will be an excellent year to view Mars. The planet will be closer to Earth – and brighter in our sky – than since 2003. But as big as the moon? Heck no.

Drone recon finds ancient Silk Road irrigation system

Scientists used drones to map a previously-unknown, 1,600-year-old irrigation system that allowed farming in arid northwest China, one of world’s driest climates.

New moon is January 16-17

This new moon is most nearly between the Earth and sun for this month. It crosses the sky with the sun during the day.

Lengths of lunar months in 2018

This new moon ends the longest lunar month of the 21st century and begins the longest lunar month of 2018.

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Best photos: Morning planets!

On Sunday morning, Jupiter and Mars were half a moon-diameter apart. Now the moon is sweeping past. Plus Mercury and Saturn are in conjunction this weekend. Photos here.

Close and far moons in 2018

In 2018, the moon swings farthest from Earth for the year on January 15, only 2 weeks after coming closest to Earth for the year on January 1.

Our Milky Way as a “melting pot”

Where do stars we see at night come from? Newly confirmed streams of stars – thought to be coming to our Milky Way from other galaxies – suggest not all Milky Way were born here.

Astronomers detect whirlpool movement in earliest galaxies

Astronomers looked back to a time only 800 million years after the Big Bang and found whirlpool shapes in small, very young galaxies.

EarthSky’s 2018 meteor shower guide

Plan ahead now for an awesome year of meteor-watching. Good news! In 2018, the year’s 2 most reliable showers – August Perseids and December Geminids – happen with little to no interference from the moon.

Is Arctic warming behind year’s crazy winter weather?

An atmospheric scientist who studies the Arctic explains why – because of global warming – the U.S. may be in for longer cold spells in the winter.

Scientists expect 1st direct black hole image soon

In 2018, scientists hope to obtain the 1st-ever direct image of a black hole’s event horizon. They’re targeting the 4-million-solar-mass black hole at the heart of our Milky Way.

A 3D journey through the Orion Nebula

Astronomers and visualization specialists at NASA have just released this unprecedented, 3-dimensional, fly-through view of the Orion Nebula, a nearby star-forming region.

Mars life clues from methane and ‘sticks’

The Curiosity rover has made 2 new and interesting discoveries – the first about methane in Mars’ air and the other about stick-rock formations – both related the possibility of life.