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Here's what a dwarf planet is and why Pluto is one of them
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Here's what a dwarf planet is and why Pluto is one of them

  • Apr 7, 2022
  • Apr 7, 2022 Updated Oct 29, 2026
Weather delay in effect at Arizona Band Day, Oct. 31
Weather delay in effect at Arizona Band Day, Oct. 31
Tucson weather forecast for October 31
Tucson weather forecast for October 31
VIDEO: Arizona vs. Texas Tech on College Football 27
VIDEO: Arizona vs. Texas Tech on College Football 27
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Tucson weather forecast for October 30
Arizona drops Cal State Monterey Bay in their final exhibition
Arizona drops Cal State Monterey Bay in their final exhibition
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Tucson's Top Stories: October 27
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University of Utah Students Poke Fun at Pat McAfee
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Tucson Fire: 1 person injured in two-alarm fire
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Tucson's Top Stories: October 26
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The Wildcast: Previewing the Arizona-Texas Tech game, other Big 12 matchups
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How Elizabeth Holmes sold Arizona on Theranos
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VIDEO: Brent Brennan talks about buying tequila shots for Arizona fans at Dirtbag's
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Tucson weather forecast for October 29
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VIDEO: UA women's basketball gets 'wakeup call' during exhibition win
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Tucson weather forecast for November 1
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Secretary Brooke L. Rollins, United States Secretary of Agriculture speaks, speaks at a celebration for the opening of the U.S. Department of Agriculture
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Carrie Ann Inaba and Val Chmerkovskiy hug after his 'DWTS' suspension
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Tucson's Top Stories: October 28
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VIDEO: Breaking down No. 25 Arizona's dominant win over Iowa State
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VIDEO: Seth Doege on playing QB at Texas Tech, growing up in West Texas
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Ever wonder why Pluto was reclassified?

As featured on

Pluto stopped being a planet 20 years ago. Why people still care

Pluto stopped being a planet 20 years ago. Why people still care

As astronomers continue discovering unusual worlds beyond our solar system, many say the question that divided scientists in 2006 remains difficult to answer: What exactly is a planet?

World spotted beyond Pluto could be solar system's next dwarf planet

World spotted beyond Pluto could be solar system's next dwarf planet

An object orbiting well beyond the reaches of Pluto may not only be the latest dwarf planet …

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Arizona Daily Star on this date: November 1

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Home+Life top stories for Nov. 1

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Tucson's Top Sports Stories: November 1

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Tucson weather forecast for November 1

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Tucson's Top Stories: November 1

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VIDEO: Playing UCLA still 'has a lot of meaning,' UA coach Tommy Lloyd says

Weather delay in effect at Arizona Band Day, Oct. 31

Weather delay in effect at Arizona Band Day, Oct. 31

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