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Posts by EarthSky

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Today's Image | May 24, 2016

Hubble spies a comet’s rotating jet

In March, Comet 252P/LINEAR passed exceedingly near the Earth. These images show the closest celestial object Hubble has observed, other than Earth’s moon.

Jim Elliott of Powell, Ohio, contributed this photo. He wrote: “The moon over Jupiter over Columbus, Ohio, at the OSU planetarium star party. April 16, 2016.”
Science Wire | May 23, 2016

Astronomy events, star parties, festivals, workshops

Summertime star parties! We’ve added many new events to this list of astronomical events throughout the U.S. and Canada. Find one near you, join in and have fun.

Image Credit: Luz Adriana Villa A.
Science Wire | May 21, 2016

Can you tell me the full moon names?

For both the Northern and Southern Hemispheres, full moons have names corresponding to calendar months or seasons of the year.

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Tonight | May 19, 2016

Deneb, tail star in Cygnus the Swan

Look for the star Deneb tonight! It’s marks the Tail of Cynus the Swan … and the head of a crosslike pattern known as the Northern Cross.

Brown recluse spider. The photo shows its size in relation to a quarter. – Photo courtesy of K-State Research and Extension
Science Wire | Apr 25, 2016

10 things to know about brown recluse spiders

It’s their active season. Here are 10 things to know about these venomous spiders that like to live where we do.

View larger. |  The Bubble Nebula, also known as NGC 7653, is an emission nebula located 11,000 light-years away. Image credit: NASA, ESA, Hubble Heritage Team
Science Wire | Apr 23, 2016

Bubble Nebula looks like giant cosmic soap bubble

A new Hubble image captures – in stunning clarity – the Bubble Nebula, a cloud of gas and dust illuminated by the brilliant star within it.

Image via Neha Golwala
Science Wire | Apr 22, 2016

Photos from friends: Favorite images of Earth

In celebration of Earth Day 2016, we’ve brought together some of our favorite images of Earth by the EarthSky community. Thank you all!

The radiant point for the yearly Lyrid meteor shower is near Vega, brightest star in the constellation Lyra the Harp.
Tonight | Apr 20, 2016

Vega marks Lyrid meteor radiant point

The maximum number of Lyrid meteors may rain down during the predawn hours on April 22, 2016. But the moon will be in the way.

Photo Credit: wili hybrid
Science Wire | Apr 15, 2016

What gives rainbows their curved shape?

A rainbow isn’t a flat two-dimensional image on the dome of sky. It’s more like a mosaic, composed of many separate bits … in three dimensions.

Photo via Eric Rolph at Wikimedia Commons
Science Wire | Apr 15, 2016

How to see a whole circle rainbow

It’s possible to see the whole circle of a rainbow – but sky conditions have to be just right. Plus you have to be up high!