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Astronomy statement on US travel ban

The International Astronomical Union issued a statement on Monday in response to the U.S. executive order limiting travel from 7 countries. Read it here.

Visualize the sun’s path through Milky Way

Sirius is easy to find. It's the sky's brightest star on the sky's dome. When you look at it, you're looking backwards along our solar system's path through the Milky Way galaxy.

Largest, closest, highest sun

As seen from Rio de Janeiro, Brazil on January 4, Earth reached its closest point to the sun just 40 minutes before the sun reached its highest daily position in Rio`s sky ...

How long to orbit Milky Way’s center?

One journey of our sun and planets around the center of our Milky Way galaxy is sometimes called a cosmic year. That's approximately 225-250 million Earth-years.

Can we see stars outside our Milky Way?

When we look up or down - away from the flat disk of the galaxy or toward it - we're seeing Milky Way stars. But we also see a few more distant objects, visible to the eye alone.

Together under the Milky Way

A dark sky, a friend and a flashlight to point out Milky Way sights.

Moon near First Point in Aries

The November 10, 2016, moon is near the First Point of Aries on the sky's dome. How to spot it, and what it means.

Science fights to control fire ants

Thinking of the ant colony as a superorganism, entomologist Patricia Pietrantonio is searching for the master regulator genes that may help control them.

Lake Austin

Image taken by our friends at Float On - Lake Austin Boat Rentals here in Austin, TX!

Vision quest

Seven shield-bearing warriors stand guard below the rising Milky Way, in a very special place in Montana.

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