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+--- Thread: Discoveries using the telescopes on Mauna Kea (/showthread.php?tid=17412)
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RE: Discoveries by the telescopes on Mauna Kea - TomK - 05-26-2024
Earth's evil exoplanet twin
This is a follow-up to my previous post.
Big Island News posted a rather long albeit interesting article about an exoplanet called "Gliese 12 b", about 40 light years away. The research team used NASA’s Transiting Exoplanet Survey Satellite and three Mauna Kea observatories, Keck, Gemini, and Subaru, to nail down the size and mass of a rocky exoplanet. The planet is Earth-sized; in fact, they narrowed it down to Venus-sized, which is only a tiny bit smaller than Earth. It's in a very different solar system; it orbits a red dwarf, a star much cooler than our sun, and a year on that planet lasts just over 12 days. But it's in a region where liquid water should exist and likely has an atmosphere that is not particularly pleasant for humans.
"The researchers think the newly discovered exoplanet is an “evil twin” because of the data they’ve gotten so far making it look more like Venus than Earth".
More here:
https://bigislandnow.com/2024/05/25/evil-twin-or-not-newly-discovered-exoplanet-will-help-get-closer-to-answers-about-why-life-appeared-on-earth/
https://www.keckobservatory.org/gliese-12b/
RE: Discoveries using the telescopes on Mauna Kea - Punatang - 08-18-2024
https://www.staradvertiser.com/2024/08/18/hawaii-news/hawaii-telescopes-help-spot-wicked-fast-star-blazing-across-galaxy/
Hawaii telescopes help spot ‘wicked fast’ star blazing across galaxy
By Michael Brestovansky Hawaii Tribune-Herald|Aug. 18th, 2024
A telescope atop Maunakea and a host of backyard astronomers have detected a rare star racing toward the edge of the galaxy at nearly unprecedented speeds.
Astronomers using instruments at both the W. M. Keck Observatory on Maunakea and Pan-STARRS on Haleakala found a star blasting through space at about 1.3 million miles per hour, roughly 0.1% the speed of light.
“It’s wicked fast,” said Keck Chief Scientist John O’Meara. “I think that’s something like Mach 1,700.”