rocks
grrlscientist | July 19, 2010tags: Zircons: Time Capsules from the Early Earth, science bulletins, geology, AMNH, American Museum of Natural History, hadean eon, zircon, rocks, age of the earth, history of planet earth, streaming video
Zircons are tiny crystals with a big story to tell. Some of these minerals are the oldest Earth materials ever discovered, and therefore yield clues about what the planet was like after it formed 4.5 billion years ago. In this new Science Bulletins video, travel to a remote island off Greenland's coast and a zircon-making lab in New York State to learn how geologists are using these time…
grrlscientist | November 21, 2008tags: Helsinki, Finland, nature, image of the day
Unidentified plants, mosses, and lichens in Munkkivuori (Helsinki).
Image: GrrlScientist, 18 November 2008 [larger view].
esiegel | March 31, 2008 Those of you who know me know that I'm unhappy living here in Arizona. The landscape and ecosystem of the Sonoran Desert, while beautiful to many, is too dry, rocky, and devoid of life for me to enjoy living here.
After my time here, I've decided that, were it somehow offered to me, I would probably pass on the opportunity to go to Mars. And so I present to you a little game I call "Mars or Arizona," where I will show you some pictures, and you get to guess which ones are pictures of Mars and which ones are pictures of Arizona. Sound easy?
Well let's bring on the pictures, and see if you…