Alzheimer’s disease is still destroying people’s brains. The cause remains unknown. Around the world, there will be walks to raise money for medical research.... »
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Geminids Meteor showers
The source of the Geminids is a mysterious object named 3200 Phaethon. No one can decide what it is. Before the mid-1800s there were no Geminids, or at least not enough to attract attention. The first Geminids appeared suddenly in 1862, surprising onlookers who saw dozens of meteors shoot out of the constellation Gemini.... »
How did dinosaurs disappear?
There are two popular explanations: Asteroid A single, gigantic asteroid slammed into Earth 65 million years ago, wipping out dinosaurs and many other species. The asteroid plunged into Mexico’s Yucatan Peninsula to carve out the Chicxulub crater. The impact triggered a worldwide environmental catastrophe expelling vast quantities of rock and dust into the sky,... »
Could all of the asteroids, comets, and planets in our Milky Way galaxy be made of a similar mix of dusty components?
After analyzing the dust particles of a variety of comets with NASA’s Spitzer Space Telescope, the Deep Impact spacecraft and the internationally funded Infrared Space Observatory, Dr. Carey Lisse, of the Johns Hopkins University Applied Physics Laboratory in Laurel, Md., believes all of the asteroids, comets, and planets in our Milky Way galaxy are... »
