Birth of Stars
[/caption] There are hundreds of billions of stars in the Milky Way alone; young and old, large and small, quiet…
What are Stars Made Of?
[/caption] Did you ever wonder what stars are made of? You might not be surprised to know that stars are…
NASA Launch Notes: Go/No-Go
[/caption] Just a few notes on a couple of NASA launches; one was a go, and the other is a…
Star Luminosity
[/caption] Small stars release small amounts of energy, and huge stars release tremendous amounts of energy. Astronomers refer to the…
Temperature of Stars
[/caption] You might be surprised to know that the color of stars depends on their temperature. The coolest stars will…
What Were the First Stars?
[/caption] Astronomers now know that the Big Bang occurred 13.7 billion years ago. For the first few hundred million years,…
More Images From Aurora Flights
[/caption] On January 29, two sounding rockets simultaneously flew through the veil of an aurora to collect data from both…
Weekend SkyWatcher’s Forecast – February 6-8, 2009
Greetings, fellow SkyWatchers! For some parts of the world, baby? It's cold outside... But those -23C temperatures haven't kept some…
Red Supergiant Star
The biggest stars in the Universe are the red supergiant stars. And we're talking really, really big. The largest known…
Opportunity Rover Sidelined by Charged Particle Hit
[/caption] The Opportunity rover recently surpassed the five-year mark on Mars. And what did she get as a birthday present?…