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Editors of EarthSky

California sediments pour into the sea

Drought plagued California and much of the American Southwest for nearly 5 years before this year. Now satellites see swollen rivers dumping sediments into the sea.

Cherry blossoms opening in Japan

In Japan at least, spring has sprung! Are you seeing signs of spring in your hometown?

Hints of a quiet, stray black hole

Theoretical studies predict 100 million to 1 billion black holes in our Milky Way galaxy. So far, astronomers have found about 60. A serendipitous discovery could lead to finding more.

Lake Travis

Image taken by our friends at Lake Travis Boat Rentals, the best place to go for Float On –lake travis boat rentals in...

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.