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NASA says X-ray detector data reveals ancient Supernovas near Earth

 

Written by Tony Phillips
Science at NASA

NASA - National Aeronautics and Space AdministrationWashington, D.C. – Once every 50 years, more or less, a massive star explodes somewhere in the Milky Way. The resulting blast is terrifyingly powerful, pumping out more energy in a split second than the sun emits in a million years. At its peak, a supernova can outshine the entire Milky Way.

It seems obvious that you wouldn’t want a supernova exploding near Earth. Yet there is growing evidence that one did—actually, more than one. About 10 million years ago, a nearby cluster of supernovas went off like popcorn. We know because the explosions blew an enormous bubble in the interstellar medium, and we’re inside it.

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NASA says Rosetta Mission has selected Comet Landing Sites for Philae Lander

 

Written by Tony Phillips
Science at NASA

NASA - National Aeronautics and Space AdministrationWashington, D.C. – The European Space Agency’s Rosetta mission has chosen five candidate landing sites on comet 67P/Churyumov-Gerasimenko for its Philae lander. Philae’s descent to the comet’s nucleus, scheduled for this November, will be the first such landing ever attempted.

“This is the first time landing sites on a comet have been considered,” said Stephan Ulamec, Philae Lander Manager at the German Aerospace Center, Cologne, Germany. “The candidate sites that we want to follow up for further analysis are thought to be technically feasible on the basis of a preliminary analysis of flight dynamics and other key issues – for example, they all provide at least six hours of daylight per comet rotation and offer some flat terrain. Of course, every site has the potential for unique scientific discoveries.”

This annotated image depicts four of the five potential landing sites for Rosetta's Philae lander. (ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM)

This annotated image depicts four of the five potential landing sites for Rosetta’s Philae lander. (ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM)

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NASA’s New Horizons spacecraft passes Neptune’s Orbit on it’s way to Pluto

 

Written by Tony Phillips
Science at NASA

NASA - National Aeronautics and Space AdministrationWashington, D.C. – NASA’s Pluto-bound New Horizons spacecraft has traversed the orbit of Neptune. This is its last major crossing en route to becoming the first probe to make a close encounter with distant Pluto on July 14th, 2015.

The sophisticated piano-sized spacecraft, which launched in January 2006, reached Neptune’s orbit — nearly 2.75 billion miles from Earth — in a record eight years and eight months. New Horizons’ milestone matches precisely the 25th anniversary of the historic encounter of NASA’s Voyager 2 spacecraft with Neptune on August 25th, 1989.

NASA's Pluto-bound New Horizons spacecraft captured this view of the giant planet Neptune and its large moon Triton on July 10, 2014, from a distance of about 2.45 billion miles (3.96 billion kilometers) - more than 26 times the distance between the Earth and sun. The 967-millisecond exposure was taken with the New Horizons telescopic Long-Range Reconnaissance Imager (LORRI). (NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute.)

NASA’s Pluto-bound New Horizons spacecraft captured this view of the giant planet Neptune and its large moon Triton on July 10, 2014, from a distance of about 2.45 billion miles (3.96 billion kilometers) – more than 26 times the distance between the Earth and sun. The 967-millisecond exposure was taken with the New Horizons telescopic Long-Range Reconnaissance Imager (LORRI). (NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute.)

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NASA’s Kepler and Spitzer Space Telescopes’ data used to measure Exoplanet with amazing accuracy

 

Written by Tony Phillips
Science at NASA

NASA - National Aeronautics and Space AdministrationWashington, D.C. – Barely 30 years ago, the only planets astronomers had found were located right here in our own solar system. The Milky Way is chock-full of stars, millions of them similar to our own sun. Yet the tally of known worlds in other star systems was exactly zero.

What a difference a few decades can make.

As 2014 unfolds, astronomers have not only found more than a thousand “exoplanets” circling distant suns, but also they’re beginning to make precise measurements of them.

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NASA says get up early to see Venus and Jupiter converging in the Morning Sky

 

Written by Tony Phillips
Science at NASA

NASA - National Aeronautics and Space AdministrationWashington, D.C. – Sleeping late is one of the simple pleasures of summer vacation. This week, waking up early will be a pleasure, too.

Set your alarm for 30 minutes before sunrise. Venus and Jupiter are converging in the dawn sky for a beautiful conjunction that will wake you up faster than a cup of strong coffee.

To see it, you’ll need a clear view of the east-northeastern horizon and … that’s all. No telescope is required.

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NASA says Comet Siding Spring and Mars’ Atmospheres may Collide in October

 

Written by Tony Phillips
Science at NASA

NASA - National Aeronautics and Space AdministrationWashington, D.C. – On October 19th, 2014, Comet Siding Spring will pass by Mars only 132,000 km away–which would be like a comet passing about 1/3 of the distance between Earth and the Moon.

The nucleus of the comet won’t hit Mars, but there could be a different kind of collision.

“We hope to witness two atmospheres colliding,” explains David Brain of the University of Colorado’s Laboratory for Atmospheric and Space Physics (LASP). “This is a once in a lifetime event!”

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NASA reports Rosetta spacecraft arrives at Comet 67P/Churyumov-Gerasimenko

 

Written by Tony Phillips
Science at NASA

NASA - National Aeronautics and Space AdministrationWashington, D.C. – Today, after a decade-long journey chasing its target, the European Space Agency’s Rosetta probe, carrying three NASA instruments, became the first spacecraft to rendezvous with a comet, 67P/Churyumov-Gerasimenko.

“After 10 years, five months and four days travelling towards our destination, looping around the sun five times and clocking up 6.4 billion kilometers, we are delighted to announce finally we are here,” said Jean-Jacques Dordain, ESA’s director General.

Comet 67P/Churyumov-Gerasimenko by Rosetta’s OSIRIS narrow-angle camera on August 3, 2014, from a distance of 177 miles (285 kilometers). (ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA)

Comet 67P/Churyumov-Gerasimenko by Rosetta’s OSIRIS narrow-angle camera on August 3, 2014, from a distance of 177 miles (285 kilometers). (ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA)

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NASA releases new image of Rosetta Spacecraft’s target Comet

 

Written by Tony Phillips
Science at NASA

NASA - National Aeronautics and Space AdministrationWashington, D.C. – As the ESA’s Rosetta spacecraft closes to within 1000 km of Comet 67P/Churyumov-Gerasimenko, the Rosetta science team has released a new image and made the first temperature measurements of the comet’s core.  The temperature data show that 67P is too hot to be covered in ice and must instead have a dark, dusty crust.

The new image was acquired on August 1st at 02:48 UTC by the OSIRIS Narrow Angle Camera onboard Rosetta at a distance of approximately 1000 km. It shows the rough surface of the double-lobed core in amazing detail.

OSIRIS narrow angle camera view of 67P/C-G from a distance of 1000 km on 1st August 2014. Note that the dark spot is an artefact from the onboard CCD. (ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA)

OSIRIS narrow angle camera view of 67P/C-G from a distance of 1000 km on 1st August 2014. Note that the dark spot is an artefact from the onboard CCD. (ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA)

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NASA says this years Perseid Meteor Shower will occur during a Supermoon

 

Written by Tony Phillips
Science at NASA

NASA - National Aeronautics and Space AdministrationWashington, D.C. – Every year, sky watchers and summertime campers circle on their calendars a few key August nights—the 11th, 12th and 13th. These are the dates of the annual Perseid meteor shower, which rarely fails to please those who see it.

This year they’re adding a note: “supermoon.”

During the second week of August, the biggest and brightest full Moon of the year will face off against everyone’s favorite meteor shower—and the outcome could be beautiful.

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NASA’s Opportunity Mars rover sets Off World Driving Distance Record

 

Written by Tony Phillips
Science at NASA

NASA - National Aeronautics and Space AdministrationWashington, D.C. – NASA’s Opportunity Mars rover, which landed on the Red Planet in 2004, now holds the off-Earth roving distance record after accruing 25 miles (40 kilometers) of driving, and is not far from completing the first extraterrestrial marathon. The previous record was held by the Soviet Union’s Lunokhod 2 rover.

“Opportunity has driven farther than any other wheeled vehicle on another world,” said Mars Exploration Rover Project Manager John Callas, of NASA’s Jet Propulsion Laboratory (JPL) in Pasadena, California. “This is so remarkable considering Opportunity was intended to drive about one kilometer and was never designed for distance.”

NASA's Mars Exploration Rover Opportunity, working on Mars since January 2004, passed 25 miles of total driving on July 27, 2014. The gold line on this map shows Opportunity's route from the landing site inside Eagle Crater (upper left) to its location after the July 27 (Sol 3735) drive. (NASA/JPL-Caltech/MSSS/NMMNHS)

NASA’s Mars Exploration Rover Opportunity, working on Mars since January 2004, passed 25 miles of total driving on July 27, 2014. The gold line on this map shows Opportunity’s route from the landing site inside Eagle Crater (upper left) to its location after the July 27 (Sol 3735) drive. (NASA/JPL-Caltech/MSSS/NMMNHS)

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