A powerful new observatory has unveiled its first images to the public, showing off what it can do as it gets ready to start its main mission: making a vivid time-lapse video of the night sky that will let astronomers study all the cosmic events that occur over ten years.

“As the saying goes, a picture is worth a thousand words. But a snapshot doesn’t tell the whole story. And what astronomy has given us mostly so far are just snapshots,” says Yusra AlSayyad, a Princeton University researcher who oversees image processing for the Vera C. Rubin Observatory.

“The sky and the world aren’t static,” she points out. “There’s asteroids zipping by, supernovae exploding.”

And the Vera C. Rubin Observatory, conceived nearly 30 years ago, is designed to capture all of it.

  • alyaza [they/she]@beehaw.orgOPM
    3·
    7 days ago

    for more on this, see the New York Times article on the observatory: How Astronomers Will Deal With 60 Million Billion Bytes of Imagery

    Each image taken by Rubin’s camera consists of 3.2 billion pixels that may contain previously undiscovered asteroids, dwarf planets, supernovas and galaxies. And each pixel records one of 65,536 shades of gray. That’s 6.4 billion bytes of information in just one picture. Ten of those images would contain roughly as much data as all of the words that The New York Times has published in print during its 173-year history. Rubin will capture about 1,000 images each night.

    As the data from each image is quickly shuffled to the observatory’s computer servers, the telescope will pivot to the next patch of sky, taking a picture every 40 seconds or so.

    It will do that over and over again almost nightly for a decade.

    The final tally will total about 60 million billion bytes of image data. That is a “6” followed by 16 zeros: 60,000,000,000,000,000.