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Topic: Comet Halley

NASA explored Venus for the first time, 40 years ago

 

NASA’s Ames Research Center

NASA - National Aeronautics and Space AdministrationMountain View, CA – Slightly smaller than Earth, Venus is our closest planetary neighbor. Despite its proximity, relatively little was known about the planet in the late 1970s, especially its lower atmosphere. All that changed, though, when the most comprehensive study of the Venusian atmosphere began 40 years ago with the NASA Pioneer Venus project. 

NASA’s Ames Research Center in California’s Silicon Valley managed the project, consisting of two spacecraft built by the Hughes Aircraft Company in El Segundo, California.

Left: Pioneer Venus Orbiter during assembly. Middle: Pioneer Venus Multiprobe undergoing final assembly and checkout. Right: Model of the Venera 11 and 12 lander (left) and entire spacecraft (right). (NASA)

Left: Pioneer Venus Orbiter during assembly. Middle: Pioneer Venus Multiprobe undergoing final assembly and checkout.
Right: Model of the Venera 11 and 12 lander (left) and entire spacecraft (right). (NASA)

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NASA’s Solar and Heliospheric Observatory sees Thousands of Comets Disintegrate

 

Science at NASA

NASA - National Aeronautics and Space AdministrationWashington, D.C. – For an astronomer, discovering a comet can be the highlight of a lifetime. Great comets carry the names of their discoverers into history. Comet Halley, Comet Lovejoy, Comet Hale-Bopp are just a few examples….

Imagine the frustration, though, if every time you discovered a comet, it was rapidly destroyed.

Believe it or not, this is what happens almost every day to the most prolific comet hunter of all time.

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NASA reports data from Rosetta Orbiter show origin of Earth’s water not from comets like Comet 67P/Churyumov-Gerasimenko

 

Written by DC Agle
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – The question about the origin of oceans on Earth is one of the most important questions with respect to the formation of our planet and the origin of life. The most popular theory is that water was brought by impacts of comets and asteroids.

Data from the Rosetta Orbiter Spectrometer for Ion and Neutral Analysis (ROSINA) instrument aboard the European Space Agency’s Rosetta spacecraft indicate that terrestrial water did not come from comets like 67P/Churyumov-Gerasimenko. The findings were published today in the journal Science.

NASA reports data from Rosetta Orbiter show origin of Earth's water not from comets like Comet 67P/Churyumov-Gerasimenko

NASA reports data from Rosetta Orbiter show origin of Earth’s water not from comets like Comet 67P/Churyumov-Gerasimenko

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NASA reports Rosetta Spacecraft’s target Comet becoming active

 

Written by Dr. Tony Phillips
Science at NASA

NASA - National Aeronautics and Space AdministrationWashington, D.C. – A spacecraft from Earth is about to do something no spacecraft has ever done before: orbit a comet and land on its surface.

Right now, the European Space Agency’s Rosetta probe is hurtling toward Comet 67P/Churyumov-Gerasimenko. The spacecraft’s mission is to study the comet at close-range as it transforms from a quiet nugget of ice and rock, frozen solid by years spent in deep space, to a sun-warmed dynamo spewing jets of gas and dust into a magnificently evolving tail.

News flash: The metamorphosis has begun.

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