Enjoying EarthSky? Subscribe.

0 subscribers and counting ...

Deborah Byrd

Here are 7 of Saturn’s moons

Saturn has 62 moons with confirmed orbits, 53 of which have names and only 13 of which have diameters larger than about 30 miles (50 km). Here are 7 of them!

Dust, smoke and North America’s sunsets

Many in North America are seeing layered sunsets, caused by smoke. EarthSky community photos from various places on the continent, plus a heads up … watch for blue-colored moons or suns!

Bam! Meteorite bombardment created Earth’s oldest rocks

A new computer modeling study shows that – some 4 billion years ago – a barrage of incoming debris from space likely formed what we know today as Earth’s oldest rocks.

More favorite Perseid meteor shower photos

2018 has been an exceptional year for the Perseids. Wonderful photos are still coming in. Thanks to all who submitted!

Wow! Zoom to the Milky Way’s center

Decades of work have gone into probing the heart of our Milky Way galaxy. Click in for a video showing stars orbiting the 4-million-solar-mass black hole at our galaxy’s core.

Was the outer solar system shaped by a stellar fly-by?

Computer modeling suggests that – billions of years ago, when our solar system was young – a star swept near, stealing some of our sun’s material and creating the odd orbits of Kuiper Belt objects.

Perseid meteor shower: All you need to know

Some believe that Monday morning – August 13 – will be the best morning for 2018’s Perseid meteor shower.

A spacecraft to touch the sun

Launch of the daredevil Parker Solar Probe – which will get closer to the sun than any spacecraft in human history – has been delayed until Sunday, August 12.

Fire cloud over California, from space

A pyrocumulus cloud – sometimes called a fire cloud – forms when intense heat from wildfires causes air to rise. Californians have been seeing these towering clouds this July and August.

Sky-wide rays

Familiar crepuscular rays and less well known anticrepuscular rays are really one and the same.