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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.

he Valles Marineris region on Mars, where astronomers examined tsunami-affected shorelines from meteor impacts. Image via NASA/JPL-Caltech
Science Wire | May 23, 2016

Ancient tsunamis on Mars?

A study suggests that 2 large meteorites hit Mars billions of years ago and triggered mega-tsunamis in Martian water oceans.

This image shows a view of the trailing hemisphere of Jupiter's ice-covered satellite, Europa, in approximate natural color. Long, dark lines are fractures in the crust, some of which are more than 3,000 kilometers (1,850 miles) long.   Image via Galileo spacecraft in 1996.
Science Wire | May 23, 2016

Is Europa’s ocean like Earth’s?

New research finds the ocean on Jupiter’s moon Europa could have the necessary balance of chemicals for life, even without active volcanoes.

Photo via Tim Geers
Science Wire | May 21, 2016

Only 2 full moons in a season possible?

The May 21 Blue Moon carries that name because it’s the 3rd of 4 full moons in a season. But can a season have just 2 full moons?

1994-JR1-Kuiper-Belt-New-Horizons-2016
Science Wire | May 20, 2016

New Horizons, heading out, spies 1994 JR1

New Horizons imaged this distant Kuiper Belt Object twice. It has learned its location and spin, and dispelled a theory that 1994 JR1 is a quasi-satellite of Pluto.

Artist’s concept of a celestial body roughly the size of Earth's moon slamming into a body the size of Mercury.  Image via NASA/JPL-Caltech.
Science Wire | May 18, 2016

Giant impacts typical for Earth-like worlds

An advanced computer simulation suggests that newly forming Earth-like worlds are likely to suffer a giant impact, like that thought to have created our moon.

View larger. | Comet C/2013 X1 (PanSTARRS) captured earlier this year by Efraín Morales, of the Sociedad de Astronomía del Caribe.
Science Wire | May 17, 2016

A new binocular comet before dawn

Comet C/2013 X1 (PanSTARRS) is now visible in binoculars before dawn. This post has charts and other info that can help you spot the comet in the coming weeks!

Earth will between between the sun and Mars on May 22, 2016.  Then, the distance between our two worlds will be at its least for this two-year period, and Mars will appear brightest in our sky.  Image via Fourmilab.
Science Wire | May 17, 2016

Mars is bright! Here’s why

We’re beginning to get questions about that red “star” in the east each evening. It’s Mars! We’ll pass between Mars and the sun this weekend.

Most Blue Moons are not blue in color.  This photo of a moon among fast-moving clouds was created using special filters. Image via EarthSky Facebook friend Jv Noriega.
Science Wire | May 16, 2016

Upcoming Blue Moon near red Mars

The May 21 full moon is a seasonal Blue Moon – an older definition of the term. Watch for it this weekend, near brilliant Mars.

An image of the galaxy AGC 198691 (nicknamed Leoncino, or "little lion") taken by the Hubble Space Telescope. | Photo by NASA; A. Hirschauer & J. Salzer, Indiana University; J. Cannon, Macalester College; and K. McQuinn, University of Texas
Science Wire | May 16, 2016

Small blue galaxy offers Big Bang clues

This galaxy – nicknamed ‘little lion’ – contains the lowest level of heavy elements ever detected in a gravitationally bound system of stars.