Explore 5 real images captured by NASA, revealing the mysterious and captivating appearance of black holes, offering a ...

Einstein believed that black holes didn't really exist. But they do: that much we know. We don't know much else about them.

Enjoy dark skies for evening observing, then catch a meteor shower and a planetary conjunction in the morning sky this week.

So Doeleman founded a network of observatories, collectively called the Event Horizon Telescope (EHT). In 2011, the Atacama Large Millimeter Array (ALMA) opened in the Atacama Desert of Chile ...

The Event Horizon Telescope, a project drawing on observatories around the world to simulate a telescope as big around as Earth, gathered radio data from around the black hole at the center of the ...

On April 25, 2025, a rare triple conjunction of Venus, Saturn, and a crescent moon will create a ’smiley face’ in the predawn ...

Early on April 25, 2025, a rare triple conjunction of Venus, Saturn, and a crescent Moon will grace the morning sky. This ...

On April 25, a rare triple planetary conjunction will resemble a smiley face in the sky, with Venus and Saturn as the "eyes" ...

Venus, Saturn and the moon will form a triple conjunction, appearing to look like a smiley face in a sky. Here's how and when ...

Venus, Saturn, and a crescent moon will align to form a ‘smiley face’ in the early morning sky. Here's how and when to watch the rare event.