|| Home. | Universe Galaxies And Stars Archives. | |
|| Universe | Big Bang | Galaxies | Stars | Solar System | Planets | Hubble Telescope | NASA | Search Engine ||
Chile to analyze the light from supernova 2002ic.
NASA announced today that Opportunity has found evidence that the rocks around it were built up at the bottom of an ancient Martian salty ocean. The rover has found evidence of cross-bedding, where inclined layers of rocks are formed through sedimentation. scientists aren't sure how long ago the sediments were created, so they're planning to send Opportunity to another outcropping of rock to make more observations. These kinds of rock formations are ideal for finding fossil evidence of past life; unfortunately, Opportunity's instruments aren't sensitive enough to see fossils if they're there.
Dark matter is a mystery. Astronomers know it's there because they can measure the effect of its gravity on stars and galaxies, but they can't see it. One theory about the nature of Dark matter is that it's composed of theoretical subatomic particles called Weakly Interacting Massive Particles (WIMPS). A team from Italy believed they detected these WIMPs back in 1998, but other scientists were skeptical. A researcher from the University of Utah has proposed that the Italians search for different streams of particles coming from different Galaxies to validate their original experiment.
Astronomers have measured the light from a supernova, and believe that it was inside a very unusual star system when it exploded. The team used the European Southern Observatory's Very Large telescope in Chile to analyze the light from supernova 2002ic, and determined that it was inside a flat, dense, clumpy disk of dust and gas that was previously blown out by a companion star. It seems similar to objects known as protoplanetary nebulae, which are found in our own Milky Way.
NASA's Opportunity has crawled out of the crater it landed in, and turned back to survey its old home. Getting out of the hole wasn't as easy as NASA originally thought it was going to be. The Opportunity made an attempt to drive out of the crater, but the slope was so steep it slipped back down. Operators finally found a route that was gentle enough for the rover to get out and onto the plains above. The 22-metre crater has been named "Eagle Crater"
Go To Print Article
Universe - Galaxies and Stars: Links and Contacts
|| GNU License | Contact | Copyright | WebMaster | Terms | Disclaimer | Top Of Page. ||