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Comet - Wikipedia
The solid, core structure of a comet is known as the nucleus. Cometary nuclei are composed of an amalgamation of rock, dust, water ice, and frozen carbon dioxide, carbon monoxide, methane, and ammonia. As such, they are popularly described as "dirty snowballs" after Fred Whipple's model. However, some comets may have a higher dust content, leading them to be called "icy dirtballs".
Minnesota Comets AAU Boys & Girls Basketball Organization
The MN Comets AAU program would like to invite current and potential Comets players to participate in two days of open gym/skills and development before tryouts.
Home - Kansas City Comets
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How Good are those Young-Earth Arguments: Hovind's 'Proofs'
1. The shrinking-sun argument contains two errors. The worst, by far, is the assumption that if the sun is shrinking today, then it has always been shrinking!. That's a little like watching the tide go out and concluding that the water level must have fallen at that rate since the earth began.
Neptune - Solar System
Neptune is the outermost planet of the gas giants. It has an equatorial diameter of 49500 km. If Neptune were hollow, it could contain nearly 60 Earths. Neptune orbits the Sun every 165 years.
Space Pictures - Hubble Images and Night Sky Photos
A collection of amazing space pictures featuring images from the Hubble telescope and time lapse photos of the night sky. Free wallpaper downloads.
Rosetta | rendezvous with a comet
mission. Rosetta launched in 2004 and arrived at Comet 67P/Churyumov-Gerasimenko on 6 August 2014. It is the first mission in history to rendezvous with a comet, escort it as it orbits the Sun, and deploy a lander to its surface.
How Asteroids and Comets Formed - Formation of the Solar ...
over time only if it was a solid object made up largely of ice. This forced astronomers to reevaluate how comets formed, since icy bodies could only have formed in certain regions of the early solar system.
Meteor Showers and their Parent Comets: Peter Jenniskens ...
Meteor Showers and their Parent Comets is a unique handbook for astronomers interested in observing meteor storms and outbursts. Spectacular displays of 'shooting stars' are created when the Earth's orbit crosses a meteoroid stream, as each meteoroid causes a bright light when it enters our atmosphere at high speed.