Cause and Effect

CAUSE AND EFFECT: When the sun spit out a Coronal Mass Ejection (CME) on Oct. 5, a brilliant aurora appeared three days later over Saskatoon, Saskatchewan, Canada. When Earth-directed, CMEs can affect electronic systems in sate...
by David McGee
 

 
 

Investigating Stellar Shrapnel

Thousands of years ago, 160 light years away from Earth, a star exploded, scattering stellar shrapnel across the sky. The Hubble Space Telescope recently found evidence of the event.
by David McGee
 

 

 

From Earth’s Caves, A Better Understanding of Mars

Dr. Penny Boston is exploring some of the most extreme environments on earth--the Snowy River Cave, the Cave of Crystal Giants--both in New Mexico, n the land where Billy the Kid once roamed--on the educated guess that those re...
by David McGee
 

 
 

Saturn’s Titan Moon Gets a Dune ‘Makeover’

The craters of Titan, Saturn's largest moon, are being erased as they're filled with dunes of exotic hydrocarbon sand, complicating efforts to estimate the age of the planet's surface.
by David McGee
 

 

 

First Global Topographic Model of Mercury

NASA’s MESSENGER mission has unveiled the first global Digital Elevation Model (DEM) of Mercury, revealing in stunning detail the topography across the entire innermost planet.
by David McGee
 

 
 

Sun Unleashes Spectacular Solar Eruption

Documenting a spectacular solar eruption and the Hubble Telescope's sighting of the remains of a star gone supernova. There's life out there.
by David McGee
 

 

 

Oldest Recorded Supernova: Last Remnants of Chinese ‘Guest Star’ of 185 A.D.

A truly cool image, combined from data from four different space telescopes, shows all that remains of the oldest documented example of supernova RCW 86, which the Chinese documented in 185 A.D. as a mysterious "guest star" in ...
by David McGee