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On This Day in Space! July 30, 1610: Galileo sees Saturn's rings for the first time

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On July 30, 1610, the famous astronomer Galileo Galilei became the first to observe rings around the planet Saturn. 

Shortly after the telescope was invented in 1608, Galileo peered out into the solar system and saw the amazing ring system. At first he didn't actually think they were rings. 

Instead, Galileo thought Saturn might have planetary "love handles" that gave it a weird shape. He also wondered if perhaps he was looking at two very large moons on either side of the planet. It wasn't until 1659 that another astronomer named Christiaan Huygens figured out that these weird features were actually rings. 

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Hanneke Weitering
Hanneke Weitering

Hanneke Weitering is an editor at Space.com with 10 years of experience in science journalism. She has previously written for Scholastic Classroom Magazines, MedPage Today and The Joint Institute for Computational Sciences at Oak Ridge National Laboratory. After studying physics at the University of Tennessee in her hometown of Knoxville, she earned her graduate degree in Science, Health and Environmental Reporting (SHERP) from New York University. Hanneke joined the Space.com team in 2016 as a staff writer and producer, covering topics including spaceflight and astronomy. She currently lives in Seattle, home of the Space Needle, with her cat and two snakes. In her spare time Hanneke likes to explore the Rocky Mountains, basking in nature and looking for dark skies to gaze at the cosmos. 

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5 Comments Comment from the forums
  • The Exoplanets Channel
    Very interesting
    Reply
  • Arc Light
    Just so you know, the X-15 took off from Edwards AFB under the wing of a B-52 & was airdropped over Delamar Dry Lake, Nevada. The flight to the altitude record wasn't planned, but the rocket engine burned for two seconds longer than expected. The test flight was scheduled to peak at 280,000', but actually reached 314, 750' due to the extra rocket burn time.
    Reply
  • Fourth Root
    Misleading wording. Bob White did not set the world altitude record on July 17th, 1962. Four Astronauts and two cosmonauts had flown higher prior to his flight. One could say it was the highest manned flight of a winged craft. But that's not the wording that was used.
    Reply
  • DrRaviSharma
    On this date in 1969, I was part of NASA Apollo Team

    Contributed to Experiments in orbit and on Surface of Moon (ALSEP) etc.also trained astronauts

    Studied containation on and ouside Spacecraft.

    The Moon gave me employment to work for 5 Years on exciting Human Space flight Programs Skylab, Planning of Space Station and Space Shuttle

    See My picture taken with Buzz Aldrin in 2009
    https://www.space.com/india-moon-landing-not-a-failure.html
    I received Apollo Achievement Award from NASA dated July 20, 1969.

    Thanks Hanneke Weitering for today's Historic post

    Ravi
    Dr. Ravi Sharma
    Reply
  • Mergatroid
    "Allegedly, the moon turns green because of its close proximity to Uranus"

    I'm sorry about that. I hear they have been investigating x-rays from the same source. I had no idea. I'll get a doctor to check into it.

    Sorry everyone.

    Sorry...
    Reply