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A Timeline Of Comet ISON's Dangerous Journey
A Timeline Of Comet ISON's Dangerous Journey
A comet's journey through the solar system is perilous. Comet ISON is making that journey.Read More...
The First Interplanetary Photobomb
The First Interplanetary Photobomb
Consider it the first interplanetary photobomb. On July 19th, NASA's Cassini spacecraft will photograph Earth through the rings of Saturn--and NASA wants you to jump into the shot.Read More...
Hubble Finds New Neptune Moon
Hubble Finds New Neptune Moon
While analyzing Neptune photos taken by the Hubble Space Telescope, astronomer Mark Showalter of the SETI Institute noticed an extra white dot about 65,400 miles from Neptune, located between the orbits of the moons Larissa and Proteus.Read More...
NASA Spacecraft Maps the Solar System's Tail
NASA Spacecraft Maps the Solar System's Tail
Like a comet, the solar system has a tail. NASA's Interstellar Boundary Explorer (IBEX) has for the first time mapped out the structure of this tail, which is shaped like a four-leaf clover.Read More...
Opportunity's Improbable Anniversary
Opportunity's Improbable Anniversary
Few, if any, imagined that Opportunity would still be roving the red sands of Mars -- and still making discoveries -- ten years later.Read More...
Voyager 1 Approaches Interstellar Space
Voyager 1 Approaches Interstellar Space
Three new papers published in today's issue of Science suggest that Voyager 1, now more than 18 billion kilometers from the sun, is closer to becoming the first human-made object to reach interstellar space.Read More...
Cassini to Photograph Earth From Deep Space
Cassini to Photograph Earth From Deep Space
NASA's Cassini spacecraft will photograph Saturn and its entire ring system during a total eclipse of the sun. Cassini has done this twice before during its previous 9 years in orbit, but this time will be different.Read More...
Ten Thousandth Near-Earth Object Discovered
Ten Thousandth Near-Earth Object Discovered
More than 10,000 asteroids and comets that can pass near Earth have now been discovered. The 10,000th near-Earth object, asteroid 2013 MZ5, was first detected on the night of June 18, 2013, by the Pan-STARRS-1 telescope.Read More...
Comet ISON: What's in a Name?
Comet ISON: What's in a Name?
Credit for comet ISON's name goes to its discovers: Vitali Nevski and Artyom Novinchonok.Read More...
Noctilucent Clouds, Comets, and Meteor Showers
Noctilucent Clouds, Comets, and Meteor Showers
This summer northern skywatchers may be able to see Noctilucent or "Night Shining" Clouds. Also called PMCs (Polar Mesospheric Clouds), these apparitions are a bit of a puzzle for scientists because it is not entirely clear how they form.Read More...
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Last Updated: 7 Apr 2014