Scraps from the site of the September 11 terrorist attacks on the World Trade Center were incorporated into two Mars Rovers as a quiet tribute to the tragedy.
Wildfires have been burning in Texas throughout September 2011. This NASA video shows them from space. Texas wildfires are still burning in parts of Texas.
Yesterday's earthquakes in Colorado and Washington took place in areas of low earthquake hazard. But there is no area on Earth completely immune from seismic activity.
A team has direct physical evidence - microscopic fossils from a North Carolina salt marsh - that sea level rise is faster now than in the past 2,000 years.
Beth Lebwohl researches, writes and helps produce science content in audio and video formats for EarthSky. She is one of the authors on EarthSky.org, a script-writer for our podcasts, and helps host our English science podcasts in 90-second, 8-minute and 22-minute formats. Beth came to EarthSky in 2006 from the American Museum of Natural History's Department of Astrophysics, where she was surrounded by some of the greatest telescope-building, equation-wielding, code-writing physicists of our time. And they made her think . . . this science thing . . . it's pretty cool.