Helpful Tools

WolframAlpha - calculator and so much more.

Astronomy news

As read by the public
Astronomy Picture of the Day
Portal to the Universe
Sky & Telescope
New York Times Space & Cosmos

As read by astronomers
ArXiv astro-ph, the research astronomer's news source, updated each day at 8 pm EST.

Citizen Science

Galaxy Zoo

Astronomy and related science blogs

Cosmic Variance - astronomers and physicists blogging about astronomy, physics, and other topics that interest them.

Bad Astronomy is actually about good astronomy and is written by Phil Plait.

Research-based Experiences for Non-experts

Sloan Digital Sky Survey projects