Another Comet Pan-STARRS

This Comet Pan-STARRS isn't as bright as the one many saw in spring 2013. But some observers are reporting a recent outburst in brightness ...

Two photos of moon trails

Two photos of moon trails, created by Earth's own spin on its axis beneath the night sky.

A tornado cut this swath of destruction in Arkansas

Among the hardest hit areas during April's severe storms were the towns of Mayflower and Vilonia, Arkansas. A NASA satellite captured the tornado track from above.

Eta Aquarid meteor from Mount Bromo, an active volcano

Part of the night sky is obscured by sulphur dioxide gas emitted by Mount Bromo, an active volcano, in this photo by Justin Ng of Singapore.

Why so few Eta Aquarid meteors in 2014?

We expected 20-40 meteors per hour this morning, at the shower's peak. But Eta Aquarid meteor rates in 2014 seem to have been far lower. Why?

A single drop of seawater, magnified 25 times

Ever wonder what's in seawater? This photograph shows a drop of seawater, magnified 25 times.

Mammatus clouds

These mammatus clouds hung over Fayetteville, Arkansas on Monday (April 28) just before sunset. Photo by Mike Price.

Guitar forest

This guitar-shaped forest is a piece of land art in Argentina. Here's how it looks from space.

Kansas tornado

Just one of the many tornados in a severe weather outbreak that struck the U.S. Central Plains and Southeast over the past few days.

Today’s solar eclipse in Australia

Beautiful partial solar eclipse in Australia today (April 29, 2014). Thanks to all who posted at EarthSky Facebook!

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