Tag Archive: Comets

Aug 14 2015

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 …

Continue reading »

Permanent link to this article: http://www.ourprg.com/?p=24173

Jul 01 2015

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 …

Continue reading »

Permanent link to this article: http://www.ourprg.com/?p=23772

Dec 11 2014

BBC Science in Action: Results from Rosetta; The Desolenator; The Sounds of Coral Reefs; Holey Ice

Rosetta’s ROSINA instrument measures what water in Comet 67P’s atmosphere looks like; Using the sun to make clean water; Messages behind coral reef acoustics; Ice with holes in it Science in Action provides you with the new developments in science and science news from around the world, weekly from BBC World Service.   http://downloads.bbc.co.uk/podcasts/worldservice/scia/scia_20141211-2030a.mp3

Permanent link to this article: http://www.ourprg.com/?p=19626

Nov 15 2014

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 …

Continue reading »

Permanent link to this article: http://www.ourprg.com/?p=19106

Nov 13 2014

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 …

Continue reading »

Permanent link to this article: http://www.ourprg.com/?p=19080

Nov 09 2014

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 …

Continue reading »

Permanent link to this article: http://www.ourprg.com/?p=19010

Oct 28 2014

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.  

Permanent link to this article: http://www.ourprg.com/?p=18742

Oct 10 2014

This Week @NASA: U.S. spacewalk on ISS and the Brightest Pulsar

Aboard the International Space Station, Expedition 41 Flight Engineers Reid Wiseman of NASA and Alexander Gerst of the European Space Agency donned U.S. spacesuits for an October 7 spacewalk to relocate a failed cooling pump and to install a backup power cable device for the station’s rail car system. The failed pump was replaced with …

Continue reading »

Permanent link to this article: http://www.ourprg.com/?p=18115

Sep 23 2014

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.  

Permanent link to this article: http://www.ourprg.com/?p=17623

Aug 12 2014

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, …

Continue reading »

Permanent link to this article: http://www.ourprg.com/?p=16731

Aug 06 2014

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 …

Continue reading »

Permanent link to this article: http://www.ourprg.com/?p=16644

Jan 20 2014

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 …

Continue reading »

Permanent link to this article: http://www.ourprg.com/?p=12642

Jul 28 2013

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.

Permanent link to this article: http://www.ourprg.com/?p=9704