Star Life Cycle. Stellar Evolution: Life of the Star The most massive stars have the shortest lives. Stars that are 25 to 50 times that of the sun live.
Open Earth Systems: An Earth Science Course For Maryland Teacher Professional Development EARTH HISTORY AND THE FOSSIL RECORD DAY 1 - Weds. July 9 AM Instruction:
Gamma-ray bursts Discovered in 1968 by Vela spy satellites Occur ~ 3 times a day at random positions in the sky.
Gamma-Ray Bursts
Your Place In Space
Astronomy
Galaxies Observing logs due April 27th!!. The Milky Way is a spiral galaxy. Most galaxies that we can see are spiral galaxies. Looking at other spiral.
Galaxies. A galaxy is made of billions of stars, dust, and gas all held together by gravity. Galaxies are scattered throughout the Universe. They vary.
Star Life Cycle
Gamma-ray bursts
Galaxies
