cosmological constant

Exam nightmares
The students in my cosmology course had their exam last week. There’s no doubt that they found the course tough this year — it was my first time teaching it, and I departed pretty significantly from the previous syllabus. Classically, cosmology was the study of the overall “world model” — the few parameters that describe…

Gruber Prize 2007
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This year’s Gruber Prize in Cosmology has been awarded to the two teams that used distant supernovae — exploding stars that are nearly “standard candles” — to be the first to conclusively determine that the expansion of the Universe is accelerating, likely due to something very much like Einstein’s “Cosmological Constant”. (Or, at least, among…
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