Jonti Horner

2 months ago | theconversation.com | Jonti Horner

On 27 December last year, astronomers using the ATLAS survey telescope in Chile discovered a small asteroid moving away from Earth. Follow up observations have revealed that the asteroid, 2024 YR4, is on a path that might lead to a collision with our planet on 22 December 2032. In other words, the newly-discovered space rock poses a significant impact threat to our planet. It sounds like something from a bad Hollywood movie.

2 months ago | tolerance.ca | Jonti Horner

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Jan 15, 2025 | sbs.com.au | Jonti Horner

Puntos destacados:El cometa C/2024 G3 (Atlas) será visible en la parte baja del cielo occidental tras la puesta del sol en los próximos días. Durante los últimos dos días, el cometa bordeó el Sol y sobrevivió intacto. Cuando el cometa se descubrió en abril de 2024, todavía estaba a más de 600 millones de kilómetros de la Tierra y el Sol. Los cometas que se acercan al Sol pueden llegar a ser espectaculares.

Jan 15, 2025 | illawarramercury.com.au | Jonti Horner

Hot on the heels of a spectacular comet late last year, another celestial visitor is set to put on a show. And Southern Hemisphere observers have a ringside seat. Subscribe now for unlimited access.

Apr 21, 2024 | australiangeographic.com.au | Jonti Horner |Charlie David Page

Now it’s our turn, as comet 12P/Pons–Brooks is creeping into view for the southern hemisphere. Before you get too excited, let me quash your hopes. Comet Pons–Brooks is visible to the naked eye, but only if you know where to look. It will look like a fuzzy glowing patch, but nonetheless promises some amazing photo opportunities for the coming weeks. Even better, it may serve as a celestial warm-up act for an even more special comet later in the year.