In the news

Steckloff, Sarid, Volk, et al. (2020): “P/2019 LD2 (ATLAS): An Active Centaur in Imminent Transition to the Jupiter Family”

In a first, astronomers spotted a space rock turning into a comet” Science News, August 2020

A ‘Front-Row Seat’ to the Birth of a Comet” New York Times, December 2020


Gemini Observatory/Charles Schambeau/Kareta et al.


Artist’s rendition of what 29P/SW1 would look like as an inner solar system comet (image: Heather Roper/University of Arizona)

Sarid, Volk, Steckloff, Harris, Womack, & Woodney (2019): “29P/Schwassmann-Wachmann 1, A Centaur in the Gateway to the Jupiter-Family Comets”

Comet Gateway Discovered to Inner Solar System, May Alter Fundamental Understanding of Comet Evolution” University of Central Florida press release, September 2019

Beyond Jupiter, Researchers Discovered a ‘Cradle of Comets‘” University of Arizona UA News article, October 2019

Newfound Cosmic ‘Gateway’ Funnels Small, Icy Objects to the Inner Solar System” LiveScience, September 2019

An ‘Orbital Gateway’ Can Guide Comets to the Inner Solar System” Discover Magazine blogs, September 2019

Comet gateway discovered to inner solar system, may alter fundamental understanding of comet evolution” Phys.org, September 2019

New-Found Comet Gateway Funnels Icy Bodies Into Inner Solar System” Forbes.com, October 2019


(Images: Heather Roper/LPL)

Malhotra, Volk, & Wang (2016): “Corralling a distant planet with extreme resonant Kuiper belt objects”

More evidence for ninth planet on solar system’s fringes” University of Arizona press release, October 2016

Planet Nine update: Possible resonances beyond the Kuiper belt?” The Planetary Society, March 2016

An update on Planet 9” AAS Nova, June 2016

UA scientists at forefront of search for Planet 9” Tucson News Now, October 2016