This video is called Evaporating Exoplanet hd209458b.
From National Geographic:
Smaller “Siblings” of Jupiter, Saturn Discovered
Anne Casselman
for National Geographic NewsFebruary 14, 2008
Two newfound extrasolar planets orbiting a star about 5,000 light years away resemble smaller versions of our own Jupiter and Saturn, an international team of astronomers reports.
These planetary “siblings” are about 80 percent as big as our gas giants and orbit a star that’s about half the size of the sun.
What’s more, the smaller planet lies about twice as far from its star as the larger one, just as Saturn is twice as far from the sun as Jupiter.
“The interesting thing about this system is that it looks very similar to our own solar system, but scaled down,” said team leader Scott Gaudi, an astronomer at Ohio State University. (Explore an interactive solar system.)
Gaudi and colleagues from 11 ground-based observatories describe the work in tomorrow’s issue of the journal Science.
The discovery is the first time that an alien planetary system with both Saturn and Jupiter analogues has been spotted, said Sara Seager, a planetary scientist at Massachusetts Institute of Technology, who was not involved in the study.
It’s also only the third time that a Jupiter-mass planet has been found using a technique called gravitational microlensing.
This method has been used to study dark matter and has only recently been applied to the search for so-called exoplanets.
“Until now microlensing has been kind of like a poor cousin in exoplanet sighting,” Seager said.
“So I think it’s a big discovery, because the true power of this technique is just becoming clear.”
First images taken of extrasolar planets: here.
Saturn’s moon Tethys: here.
Could flowers bloom on [Jupiter’s] icy moon Europa? Here.
Facts About Jupiter and Four of Its Moons: here.
Moon systems, not planets, may be place to
find life:
Alien life might be both easier and more interesting
to discover through a new strategy, a study suggests.
http://www.world-science.net/exclusives/080219_jupiters
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Salt might have thwarted Martian life:
New research may narrow the possibilities for where
and when microbes could have lived on the red planet.
http://www.world-science.net/othernews/080215_mars-salt
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Dark energy, or just dust? Findings raise
questions:
Tiny whiskers of carbon in space may explain
puzzling observations usually attributed to a
mysterious force, researchers say.
http://www.world-science.net/othernews/080301_graphite
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That habitable planet might not be so far:
We just might have neighbors among the closest stars
to our sun, scientists say.
http://www.world-science.net/othernews/080310_planet
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Blast called furthest thing visible to naked eye:
Halfway across the known cosmos, scientists say, a
massive stellar explosion March 19 was briefly
visible to unaided eyes.
http://www.world-science.net/othernews/080320_grb
* Distant moon may have hidden ocean:
Scientists are reporting evidence of a vast body of
water and ammonia inside Saturn’s moon Titan.
http://www.world-science.net/othernews/080320_titan
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Organic chemicals detected at Saturn moon:
A surprising “brew” is erupting like a geyser from
Saturn’s moon Enceladus, according to researchers.
http://www.world-science.net/othernews/080326_enceladus
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Epic crash may explain two faces of Mars:
Scientists have been hard-pressed to explain why the
red planet’s two halves look very different.
http://www.world-science.net/othernews/080625_mars
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Astronomers: impact gives Jupiter bruise as
wide as Pacific:
Something apparently slammed into the giant planet
in the last few days, scientists say.
http://www.world-science.net/othernews/090722_jupiter
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Distant moon may have oxygen in ocean:
The abundant water in Jupiter’s moon Europa may have
enough oxygen to support even animal-like life
forms, a study suggests.
http://www.world-science.net/othernews/091009_europa
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In planetary odd couple, two worlds within
plain sight distance of each other:
http://www.world-science.net/othernews/120621_planets
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Huge geysers on Jupiter moon?
Huge plumes containing water vapor escape Europa’s
icy crust, hints to the ocean beneath, scientists
report.
http://www.world-science.net/othernews/131214_europa.htm
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Measurements show Jupiter’s “Red Spot”
shrinking fast:
http://www.world-science.net/othernews/140516_RedSpot.htm
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