Skywatchers throughout the Northern Hemisphere are enjoying views of the newly discovered Comet SWAN.

Meanwhile, astronomers are keeping watch for a rare nova—a sudden explosion of a distant star—that could appear to the naked ...

Jupiter and Mars shine in the evening, more planets gather in the morning, and the Eta Aquariid meteors join in.

The shower will peak overnight on May 4, meaning the ideal time to view the display will be dawn on May 5. Since the moon ...

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By analyzing the shape and brightness of the lensed images, astronomers could begin mapping both visible and dark matter in the foreground ... Kerberos and Styx — which helped mission planners chart a ...