tail

Subaru Telescope Captures the Fine Details of Comet Lovejoy’s Tail

by Jason Major December 6, 2013

Want to stay on top of all the space news? Follow @universetoday on Twitter Comet ISON may be no more than just a cloud of icy debris these days but there’s another comet that’s showing off in the morning sky: C/2013 R1 (Lovejoy), which was discovered in September and is steadily nearing its Christmas Day […]

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Comet ISON Goes Green

by Bob King September 28, 2013

As NASA and the European Space Agency prepare ┬átheir remote photojournalists – Mars Express, Mars Reconnaissance Orbiter and the Curiosity and Opportunity rovers – to capture photos of Comet ISON’s flyby of Mars early next week, amateur astronomers continue to monitor and photograph the comet from backyard observatories across the blue Earth. Several recent color […]

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What Are Comets Made Of?

by Jerry Coffey September 20, 2009

What are comets made of? Good question! Comet nuclei are loose collections of ice, dust and small rocky particles, ranging from a few kilometers to tens of kilometers across. As a comet approaches the inner solar system, solar radiation causes the volatile materials within the comet to vaporize and stream out of the nucleus, carrying […]

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