Cosmology

If you're planning a Deep Space Nine voyage to the Gamma Quadrant, make sure you bring a good supply of cosmic ray screen, with say a nice #1000 block. According to sensors on NASA's ACE (Advanced Composition Explorer) spacecraft, galactic cosmic rays have just hit a Space-Age high. "In 2009, cosmic ray intensities have increased 19% beyond anything we've seen in the past 50 years," says Richard Mewaldt of Caltech. "The increase is significant, and it could mean we need to re-think how... Read Full Story

prepare you to watch a meteor shower and not only revel in it's beauty, .... There have been some meteorites in history that have had a lasting impact on ... Read Full Story

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Sky gazers will witness fireworks in the night sky as Orionid meteor showers peak Wednesday. Look at the night sky past midnight and you will be able see dozens of meteors per hour. "It is an annual affair but this time due to the new moon, meteor showers can be observed with the naked eye," said N. Rathnasree, director of Nehru Planetarium. Rathnasree said the meteor showers can be observed during the week but will peak on Wednesday. Orionid showers originate when the Earth... Read Full Story

PARIS (AFP) -- Jupiter snared a passing comet in the middle of the last century, eventually releasing it 12 years later, astronomers reported on Monday. Data presented at the European Planetary Science Congress in Potsdam, near Berlin, showed that the biggest planet of the Solar System gained a temporary satellite, a comet called 147P/Kushida-Muramatsu, between 1949 and 1961. It is only the fifth captured comet to be identified, a press release said. Comets are lonely wanderers of the Solar... Read Full Story

Leonid meteor shower by radar, visual and video techniques, Mon. Not. R. Astron. Soc. 300, 244–250. Burke, J. G. 1986. Cosmic Debris: Meteorites in History . ... Read Full Story

in all likelihood are unrelated to the Taurid shower . In 1983, Fred Whipple recognized that minor .... past fragmentation history . The comet does appear ... Read Full Story

Key words: Meteors: Leonid meteor shower . 1 INTRODUCTION. The Leonid meteor shower is a well-known periodic meteor shower . Its history is tied up ... Read Full Story

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Lawrence Krauss gives a brilliant talk on our current picture of the universe, how it will end, and how it could have come from nothing. Krauss is the author of many bestselling books on and Cosmology, including "The Physics of Star Trek." Read Full Story