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100th Gemini Paper Reveals White Dwarf Progenitors are Prolific Mass Expellers

A long-standing problem in understanding the evolution of stars has been determining the nature of the stellar progenitors for white dwarf stars. In particular, astronomers want to know how a rather massive star (up to seven times the mass of the Sun) can lose enough mass to become a white dwarf. Key questions include: Which main-sequence stars eventually end their life as white dwarfs? How much mass do they lose in late evolutionary stages? What process allows this to occur?

Journey Through The Universe

A Gemini partnership with Mauna Kea Observatories, the Hawaii Department of Education and the Challenger Center for Space Science Education will bring the program Journey Through the Universe to several East Hawaii communities. This program will provide educators, students and the public with exciting educational experiences and share the discoveries from Mauna Kea and our exploration of the universe.

Gemini Observatory Welcomes 2005 with Release of Galactic Fireworks Image

December 31, 2005

New Clouds Add to Titan's Mystery

En Español - Versión adaptada en Chile

Media Contacts:

Peter Michaud
Gemini Observatory

Phone: 808/974-2510


Current StarTeachers Program

Previous StarTeachers Program

StarTeachers 2005 Biographies

En Español - Versión adaptada en Chile

Embargoed until 9:30 am (HST)/4:30 pm (Chile) Thursday December 9th.

Gemini Observatory