A few favorite snowflake photos

We asked last week at EarthSky Community Photos for your snowflake images, then sat back and were dazzled by the beautiful and amazing photos you posted!

New warning about Greenland ice melt

A new study suggests that Greenland ice is melting 4 times faster than in 2003. "We’re going to see faster and faster sea level rise for the foreseeable future," these scientists said.

More globular star clusters found at Milky Way’s heart   

We think of globular clusters as being scattered far from the galaxy's central regions, in the great spherical halo of our Milky Way. But astronomers are finding them much closer to the galactic center.

The moon at mid-arch from full to new

Astronomer Guy Ottewell shares insights and charts related to the current moon phase.

Can moons have moons?

A new study shows that Earth's moon should, theoretically, be able to have its own moon. Why doesn't it?

Moonrise over Nubble Lighthouse

Just past full, a brilliant moon rises behind the 1874 Nubble Lighthouse in York, Maine. Photographer Manish Mamtani captured 2 views.

Summer rainfall at Titan’s north pole

For the first time, researchers have found evidence in data sent back by Cassini for methane/ethane rainfall near Titan's north pole, signaling the start of the summer season on Saturn's largest moon.

ISS transit on eclipse night

Astrophotographers watch for transits of the International Space Station across the face of the sun or moon. This one happened on eclipse night, as seen from Texas.

How soon will we see the black hole at the Milky Way’s heart?

An international consortium has been striving to obtain an image of the “shadow” of the event horizon of our Milky Way's central supermassive black hole. Here's an update.

Do all planets orbit in a flat plane around their suns?

The major planets in our solar system orbit, more or less, in a single plane. That's why you can look for them along the same sky path traveled by the sun and moon. Is the same true for exoplanets in distant solar systems?