Tuesday, December 15, 2009

FAVORITE TOPIC IN E. SCIENCE


My favorite topic from this year in Earth Science would be the astronomy unit. The astronomy unit talked about the universe and how it was created. It also talks about how there could be other life forms in other galaxies and how we are searching for them. What i thought was most interesting were black holes and worm holes. I found this interesting because that wouls just be awesome if time portals did exist and what the inside of a black hole could really look like. I mean thats just cool how u could look up at the sky and watch objects float then suddenly disappear because they fell into the boundary of a balck hole. This topic also dealt with how scientist think the universe will come to an end. They believe in the Big Crunch Theory. There's just so much to explore in space and I can just think of the possiblities of what could really be waiting for us to discover it.

Monday, December 7, 2009

EXTRASOLAR PLANETS

1. Four ways that atsronomers can detect extrasolar planes are Radial Velocity, Astrometry, Transit Method, and Optical Detection.

2. The one I choose is Transit Method. This method explains that when a planet passes a star and its observers line of sight, part of the star will be blocked by the planet. This reduces the star apparent brightness. Highly sensitive detectors would detect that change in brightness thus knowing theres a planet nearby.

3. More than 1o planet have be detected using this method.