Astronomy Cast Ep. 398 – Seeing Things: Emitting, Reflecting, Ionizing Light Sources
Astronomers gather electromagnetic radiation with the telescopes: mostly visible light. But sometimes they’ve got to be clever about where they look for these elusive photons. Light can get emitted, absorbed, reflected, and each method tells astronomers a little more about what they’re looking at.
Visit the Astronomy Cast Page to subscribe to the audio podcast!
We record Astronomy Cast as a live Google+ Hangout on Air every Monday at 12:00 pm Pacific / 3:00 pm Eastern. You can watch here on Universe Today or from the Astronomy Cast Google+ page.
Recent Posts
Could Comets have Delivered the Building Blocks of Life to “Ocean Worlds” like Europa, Enceladus, and Titan too?
Throughout Earth's history, the planet's surface has been regularly impacted by comets, meteors, and the…
There’s More Water Inside Planets Than We Thought
When you walk across your lawn or down the street, you move on the surface…
Why Did Copernicus Reject Geocentrism?
Popular science history paints a picture of the Greek geocentric model dominating astronomical thought beginning…
China Will Launch its Mars Sample Return Mission in 2028
While NASA's Mars Sample Return mission has experienced a setback, China is still moving forward…
Artemis III Landing Sites Identified Using Mapping and Algorithm Techniques
Where would be the most ideal landing site for the Artemis III crew in SpaceX’s…
One Step Closer to Solving the Mystery of Mars’ Lost Water
Few scientists doubt that Mars was once warm and wet. The evidence for a warm,…