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The roster of weird alien worlds has a new addition: a planet with a tail.

The gaseous extrasolar planet known as HD 209458b has been suspected of having a comet-like tail since 2003 but, being 153 light years away, it has been hard to prove.

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Using the Hubble Space Telescope, Jeffrey Linsky and his team at the University of Colorado in Boulder has managed to ...

Astronomers have glimpsed what could be the youngest known star at the very moment it is being born. Not yet fully developed into a true star, the object is in the earliest stages of star formation and has just begun pulling in matter from a surrounding envelope of gas and dust, according to a new study that appears in the current issue of the Astrophysical Journal.

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MIAMI – A comet plunging into the sun has been captured in 3-D as it hurtled along its kamikaze path for the first time, solar physicists announced Monday.

"We believe this is the first time a comet has been tracked in 3-D space this low down in the solar corona," said solar physicist Claire Raftery, a post-doctoral fellow at UC Berkeley.

Four post-doctoral researchers at UC Berkeley's Space Science's Laboratory used ...

Did you know that astronomy is the oldest of the physical sciences?

In many early civilizations the regularity of celestial motions was recognized, and attempts were made to keep records and predict future events.
The first practical function of astronomy was to provide a basis for the calendar the units of month and year being determined by astronomical observations.
Later, astronomy served in navigation and timekeeping.
The Chinese had a working calendar as early as ...

Hi all!!
Can you tell me , what planet has the lowest density of all the planets in the solar system?

Some Basic Astronomy Demonstrations for Early Elementary Ages
William P. Blair, Johns Hopkins University

There are( http://fuse.pha.jhu.edu/~wpb/globe.html) a whole host of astronomical ideas and concepts that can be demonstrated with these simple materials and a little ingenuity on your part. Be careful to tailor the discussion to the age group of your audience. For the youngest groups, keep it simple. Just introducing them to some of the terminology and ...

what kind of person is he?
Galileo Galilei

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Galileo Galilei was a pioneer of modern physics and telescopic astronomy who was born on February 15, 1564 near Pisa, Italy.
As an Italian physicist and astronomer, he was the first to use the telescope to discover many undiscovered realms of space.
His discoveries of sunspots, lunar mountains and valleys, and the satellites of Jupiter formed the basis of modern ...

Which planet has the tallest volcano in the solar system of our universe?

from newscientist.com

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The most detailed panoramic view ever obtained on Mars has been returned by NASA's Spirit rover in time to mark its 1000th Martian day, or sol, on the Red Planet.
Spirit took the images over a span of more than five months, while parked on a slope called Low Ridge Haven during winter in the planet's southern hemisphere. The relatively small amount of winter sunshine meant the ...

With Trilogy GigaGalaxy Zoom the observatory has celebrated the International year of astronomy (IYA2009).

IYA2009 General

The International Year of Astronomy 2009 is a global effort initiated by the International Astronomical Union (IAU) and UNESCO to help the citizens of the world rediscover their place in the Universe through the day- and night-time sky, and thereby engage a personal sense of wonder and discovery.

Vision

Everyone should realise the impact of astronomy and other fundamental ...