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Tag: Comets

WIRED: Meet the NASA Scientist Who Tracks Dangerous Asteroids in Earth’s Orbit

As a physicist at NASA’s Jet Propulsion Laboratory, Marina Brozovic studies and measures near-earth asteroids—you know, the ones that can potentially cause catastrophic damage. Watch as Brozovic explains how her team tracks the orbit of these large masses and how NASA would prepare if one were to come barreling towards earth.  

Royal Observatory Greenwich: Space Rocks

Want a stop motion explainer on asteroids, comets, meteors, and meteorites? Well, here you are. There are lots of names associated with space rocks, so what is the difference? Join the Royal Observatory Greenwich astronomers to find out. They will also explore what space rocks can tell us about our very own planet Earth.  

ESA: The organic comet

On 13 August, Comet 67P/Churyumov-Gerasimenko reaches its closest point to the Sun (perihelion) and the Rosetta orbiter will be there to see exactly what happens. Rosetta will continue monitoring the comet’s activity until the extended mission ends, in September 2016, to increase our understanding of how a comet changes during its orbit and as it …

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American Museum of Natural History: Deflecting Asteroids | Protecting the Earth from Future Catastrophic Events

Will we be able to avoid a repeat of the Tunguska event? Or perhaps even the Cretaceous–Paleogene extinction event? Although massive asteroid impacts on Earth are rare, astronomers have identified thousands of asteroids close enough to Earth to be potentially hazardous. Learn from meteorite specialist Denton Ebel, Curator in the Division of Physical Sciences, how …

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AMNH: Science Bulletins | Rosetta Mission Lands Probe on Comet

On November 12, 2014, more than a decade after launching, the European Space Agency’s Rosetta mission was positioned to send a probe to the surface of 67P/Churyumov–Gerasimenko, a small comet orbiting the Sun at a distance of hundreds of millions of kilometers. After a tense 7-hour descent (and a 30-minute transmission delay), mission control confirmed …

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ESA: Philae touchdown: lander status and first descent image

Highlights from coverage of ESA’s Rosetta mission soft-landing its Philae probe on a comet, the first time in history that such an extraordinary feat has been achieved. Including the presentation of the first ROLIS image sent back by Philae as the lander descended to the surface of the comet. After a tense wait during the …

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ESA: Briefing |Rosetta science and countdown to comet landing

Media and interested members of the public joined Rosetta mission experts online on Friday, 7 November for a briefing ahead of the historic comet landing on 12 November. Programme: Introduction: Emily Baldwin, ESA space science editor Overview of media events: Jocelyne Landeau-Constantin, Head of ESOC communication office Science from Rosetta so far: Matt Taylor, ESA …

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TED Ed: Could comets be the source of life on Earth?

While comets were historically thought to be ill omens of war and famine, recent science has revealed that these celestial wonders actually contain amino acids, the building blocks of life on Earth. Justin Dowd explores the implications of this magnificent discovery.  

ESA: Rosetta mission status

The Rosetta mission is ongoing at comet 67P/Churyumov–Gerasimenko. The landing site for Philae has been chosen. The adventure continues! But already Rosetta is providing the scientific community more than any previous comet mission.  

ESA Euronews: Comet Hunters: Rosetta’s race to map 67P

The Rosetta mission is now on a race against time to prepare maps and collect data before the Philae lander is due to be sent down to the surface of comet 67P in November. In this edition of Euronews Space, the ‘Comet Hunters’ show us how to orbit a comet, how Rosetta ‘sees’ its target, …

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ESA: How to orbit a comet

What happens after Rosetta arrives at comet 67P/Churyumov–Gerasimenko? This animation describes the key dates for the next set of manoeuvres that will bring Rosetta even closer to the comet between August and October. After arriving on 6 August, Rosetta will follow a set of two, three-legged triangular trajectories that require a small thruster burn at …

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Comet-Chasing Rosetta Spacecraft Wakes from Deep Sleep Monday: Watch It Live

For ten years the ESA Rosetta probe has been on its way to the comet 67P/Churyumov-Gerasimenko and in June 2011 it was set in hibernation mode to conserve energy. The internal timer was set to awake the probe today with multiple radiators to first warm it up. The waiting is now on to receive a …

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NASA EDGE: Planetary Defense

NASA EDGE and Special Guest Geoff Notkin speak with NASA scientists and experts from around the world at the 2013 Planetary Defense Conference about Near Earth Objects and their potential threat to Earth.