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EarthSky Voices

Arcturus, the brightest star of the northern sky

Arcturus is the brightest star north of the celestial equator. Near the handle of the Big Dipper, it's easy to find in spring in the Northern Hemisphere.

Voyager 2 science mission extended another 3 years

NASA has found a way to conserve power on Voyager 2, allowing for its science mission to extend another three years. Read more about it here.

Asteroid Phaethon – parent of Geminid meteors – gets weirder

The asteroid Phaethon is the parent object of the annual Geminid meteor shower. It forms a comet-like tail made of sodium, not dust.

Coming El Niño will bring hotter ocean temps

La Niña is gone and El Niño is coming. Scientists say El Niño will bring hotter temperatures to the ocean. Read why El Niño should make oceans warmer.

Einstein rings might help solve dark matter puzzle

By studying Einstein rings, scientists have found that axions are more likely to be the form of dark matter than WIMPs. Learn more about the study here.

Why is Venus so bright in Earth’s sky?

You can't miss dazzling Venus in the night sky. In fact, it's the 3rd brightest natural object in the sky, after the sun and moon. But why is Venus so bright?

California flood risk rises as snow melts

The California flood risk is rising as the epic snowpack is melting in the warmer spring weather. Learn more about the flooding risk here.

Is there a space race between the United States and China?

Is the U.S. in a space race with China? While both are actively expanding their presence in space and their goals for the moon, one country is still far ahead.

April 2023 solar eclipse: 10 things to know

Find out where and when to see the April 2023 solar eclipse, plus some fascinating facts about it. Plus, get a link to a livestream of the event.

What is a hybrid eclipse? A total and annular combined

A hybrid eclipse is a solar eclipse that appears as total for some and annular for others, with those farther from the centerline seeing a partial eclipse.