Written by DC Agle
Pasadena, CA – The European Space Agency’s orbiting Rosetta spacecraft is expected to come within four miles (six kilometers) of the surface of comet 67P/Churyumov-Gerasimenko in February of next year. The flyby will be the closest the comet explorer will come during its prime mission.
“It is the earliest we could carry it out without impacting the vitally important bound orbits that are currently being flown,” said Matt Taylor, the Rosetta project scientist from the European Space Research and Technology Center, Noordwijk, the Netherlands. “As the comet becomes more and more active, it will not be possible to get so close to the comet. So this opportunity is very unique.”
NASA’s Jet Propulsion Laboratory
Pasadena, CA – The Dawn spacecraft has delivered a glimpse of Ceres, the largest body in the main asteroid belt, in a new image taken 740,000 miles (1.2 million kilometers) from the dwarf planet. This is Dawn’s best image yet of Ceres as the spacecraft makes its way toward this unexplored world.
“Now, finally, we have a spacecraft on the verge of unveiling this mysterious, alien world. Soon it will reveal myriad secrets Ceres has held since the dawn of the solar system,” said Marc Rayman, of NASA’s Jet Propulsion Laboratory in Pasadena, California, chief engineer and mission director of the Dawn mission.
Washington, D.C. – NASA and space agencies across the globe are opening up new possibilities for space exploration with missions to comets, asteroids, and other celestial bodies.
Following NASA, European Space Agency (ESA), and Indian Space Research Organisation (ISRO) spacecraft observations of the close flyby of Mars by comet Siding Spring in October, and the successful November landing of ESA’s Philae lander on comet 67P/Churyumov–Gerasimenko, the Japan Aerospace Exploration Agency (JAXA) successfully launched its Hayabusa2 mission on December 3rd to rendezvous with an asteroid, land a small probe plus three mini rovers on its surface, and then return samples to Earth.
NASA uses Keck Observatory telescopes to determine dust will likely not to block images of star’s Planets
Written by Whitney Clavin
Pasadena, CA – Planet hunters received some good news recently. A new study concluded that, on average, sun-like stars aren’t all that dusty. Less dust means better odds of snapping clear pictures of the stars’ planets in the future.
These results come from surveying nearly 50 stars from 2008 to 2011 using the Keck Interferometer, a former NASA key science project that combined the power of the twin W. M. Keck Observatory telescopes atop Mauna Kea, Hawaii.
Written by Karen C. Fox
Greenbelt, MD – Two donuts of seething radiation that surround Earth, called the Van Allen radiation belts, have been found to contain a nearly impenetrable barrier that prevents the fastest, most energetic electrons from reaching Earth.
The Van Allen belts are a collection of charged particles, gathered in place by Earth’s magnetic field. They can wax and wane in response to incoming energy from the sun, sometimes swelling up enough to expose satellites in low-Earth orbit to damaging radiation.
Written by DC Agle
Pasadena, CA – A 3D image shows what it would look like to fly over the surface of comet 67P/Churyumov-Gerasimenko.
The image was generated from data collected by the Rosetta Lander Imaging System (ROLIS) aboard the European Space Agency’s Philae spacecraft during the descent to the spacecraft’s initial touchdown on the comet November 12th.
The stereographic image was generated using two images acquired by ROLIS when Philae was a little less than 2 miles (3 kilometers) from the surface.
Written by DC Agle
Pasadena, CA – On Wednesday, November 12th, the European Space Agency’s Rosetta mission successfully landed on the surface of comet 67P/Churyumov-Gerasimenko. Descending at a speed of about 2 mph (3.2 kilometers per hour) the lander, called “Philae,” first touched down and its signal was received at 8:03am PST (11:03am EST).
Partially due to anchoring harpoons not firing, and the comet’s low gravity (a hundred-thousand times less than that of Earth), Philae bounced off the surface and flew up to about six-tenths of a mile (1 kilometer) both above the comet’s surface as well as downrange.
NASA’s Cassini Mission data reveals Jupiter’s Red Spot probably created by Chemical reaction to Sunlight
Written by Preston Dyches
Pasadena, CA – The ruddy color of Jupiter’s Great Red Spot is likely a product of simple chemicals being broken apart by sunlight in the planet’s upper atmosphere, according to a new analysis of data from NASA’s Cassini mission. The results contradict the other leading theory for the origin of the spot’s striking color — that the reddish chemicals come from beneath Jupiter’s clouds.
The results are being presented this week by Kevin Baines, a Cassini team scientist based at NASA’s Jet Propulsion Laboratory, Pasadena, California, at the American Astronomical Society’s Division for Planetary Science Meeting in Tucson, Arizona.
Written by DC Agle
Pasadena, CA – Early Tuesday morning, the European Space Agency’s Rosetta spacecraft will deploy its comet lander, “Philae.” A little over seven hours later (8:00am PST/11:00am EST), the experiment-laden, harpoon-firing Philae is scheduled to touch down on the surface of comet 67P/Churyumov-Gerasimenko.
It will be the first time in history that a spacecraft has attempted a soft landing on a comet. Rosetta is an international mission led by the European Space Agency (ESA), with instruments provided by its member states, and additional support and instruments provided by NASA.
Written by DC Agle and Guy Webster
Pasadena, CA – After sailing through space for more than 10 years, the European Space Agency’s Rosetta spacecraft is now less than a week shy of landing a robotic probe on a comet.
The mission’s Philae (fee-LAY) lander is scheduled to touch down on comet 67P/Churyumov-Gerasimenko on Wednesday, November 12th at 7:35amPST/10:35am EST. A signal confirming the landing is expected about 8:02am PST/11:02am EST.
If all goes as planned with this complex engineering feat, it will be the first-ever soft landing of a spacecraft on a comet.
Now playing at the Movies
Showtime information provided by Discover Clarksville.
© 2006-2010 Clarksville, TN Online is owned and operated by residents of Clarksville Tennessee.