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Rosetta Comet Comes Alive
Rosetta Comet Comes Alive
A spacecraft from Earth is about to do something no spacecraft has ever done before: orbit a comet and land on its surface.Read More...
A New Meteor Shower in May?
A New Meteor Shower in May?
The shower is the May Camelopardalids, caused by dust from periodic comet 209P/LINEAR. No one has ever seen it before, but this year the Camelopardalids could put on a display that rivals the well-known Perseids of August.Read More...
Comet ISON vs. the Solar Storm
Comet ISON vs. the Solar Storm
In 2007, astronomers were amazed when a solar storm hit comet Encke. The same thing could be in store for comet ISON -- only worse.Read More...
Two Comets to Fly By Mercury
Two Comets to Fly By Mercury
What are the odds? On Nov. 18th and 19th not one but two comets will fly by the planet Mercury.Read More...
Comet ISON: What's Next?
Comet ISON: What's Next?
Comet ISON is now inside the orbit of Earth as it plunges headlong toward the sun for a fiery close encounter on Nov. 28th. Although the comet is not yet as bright as many forecasters predicted, the comet is putting on a good show for observatories ...Read More...
It's Complicated: Dawn Spurs Rewrite of Vesta's Story
It's Complicated: Dawn Spurs Rewrite of Vesta's Story
Just when scientists thought they had a tidy theory for how the giant asteroid Vesta formed, a new paper from NASA's Dawn mission suggests the history is more complicated.Read More...
Rosetta: 100 Days to Wake-Up
Rosetta: 100 Days to Wake-Up
ESA's comet-chasing mission Rosetta will wake up in 100 days' time from deep-space hibernation to reach the destination it has been cruising towards for a decade.Read More...
Dawn Reality-Checks Telescope Studies of Asteroids
Dawn Reality-Checks Telescope Studies of Asteroids
In a paper, Vishnu Reddy and other members of Dawn's framing camera team describe how up-close observations of Vesta have confirmed and provided new insights into more than 200 years of Earth-based observations.Read More...
Amateur Astronomers See Comet ISON
Amateur Astronomers See Comet ISON
Anticipation is building as Comet ISON approaches the sun for a close encounter on Thanksgiving Day (Nov. 28). No one knows if the blast of solar heating ISON receives will turn it into one of the finest comets in years -- or destroy the icy visitor.Read More...
Off the Earth, for the Earth
Off the Earth, for the Earth
Space exploration has always created benefits for humankind -- from new technologies and discoveries, to deepening international relationships and inspiring young people to pursue careers in science, technology, engineering and math.Read More...
BRRISON: A Planetary Science Balloon Mission
BRRISON: A Planetary Science Balloon Mission
This fall, NASA plans to launch a new balloon-based mission that will float to the edge of our atmosphere to observe a comet from the far reaches of the solar system.Read More...
Comet ISON to fly by Mars
Comet ISON to fly by Mars
Around the world, astronomers are buzzing with anticipation over the approach of Comet ISON.Read More...
New Imagery of Asteroid Mission
New Imagery of Asteroid Mission
NASA released Aug. 22 new photos and video animations depicting the agency's planned mission to find, capture, redirect, and study a near-Earth asteroid.Read More...
Around the World in Four Days: NASA Tracks Chelyabinsk Meteor Plume
Around the World in Four Days: NASA Tracks Chelyabinsk Meteor Plume
Atmospheric physicist Nick Gorkavyi missed witnessing an event of the century last winter when a meteor exploded over his hometown of Chelyabinsk, Russia. From Greenbelt, Md., however, NASA's Gorkavyi and colleagues witnessed a never-before-seen view ...Read More...
Heliophysics Nugget: Mapping Tons of Meteoric Dust in the Sky
Heliophysics Nugget: Mapping Tons of Meteoric Dust in the Sky
On Aug.11 and 12, 2013, the annual Perseid meteor shower will peak, filling the sky with streaks of light, commonly known as shooting stars.Read More...
Perseid Fireballs
Perseid Fireballs
In astronomy, there's nothing quite like a bright meteor streaking across the glittering canopy of a moonless night sky. The unexpected flash of light adds a dash of magic to an ordinary walk under the stars.Read More...
Target Asteroid Tracked by European Teams
Target Asteroid Tracked by European Teams
In a recent close-ish flyby, asteroid 2002 GT was studied in detail for the first time by a network of European astronomers.Read More...
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...
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...
Noctilucent Clouds Get an Early Start
Noctilucent Clouds Get an Early Start
Every summer, something strange and wonderful happens high above the north pole. Ice crystals begin to cling to the smoky remains of meteors, forming electric-blue clouds with tendrils that ripple hypnotically against the sunset sky.Read More...
Approaching Asteroid Has Its Own Moon
Approaching Asteroid Has Its Own Moon
Approaching asteroid 1998 QE2 has a moon.Read More...
Bright Explosion on the Moon
Bright Explosion on the Moon
NASA researchers who monitor the Moon for meteoroid impacts have detected an explosion ten times brighter than anything they've seen before.Read More...
Comet ISON Meteor Shower
Comet ISON Meteor Shower
Anticipation is building as Comet ISON plunges into the inner solar system for a close encounter with the sun in November 2013. Blasted at point-blank range by solar radiation, the sungrazer will likely become one of the finest comets in many years.Read More...
Solar System Exploration @ 50: What the Experts Picked
Research... at a Glance
Solar System Exploration @ 50: What the Experts Picked
Here is what the experts had to say about their favorite moments last 50 years of planetary robotic exploration.Read More...
Radar Imaging of Near Earth Asteroids
Radar Imaging of Near Earth Asteroids
Radar is a very powerful astronomical technique for studying the physical properties and refining the orbits of near-Earth asteroids.Read More...
Regenerative Fuel Cells, Energy Storage Systems for Space Applications
Regenerative Fuel Cells, Energy Storage Systems for Space Applications
This talk provides an introduction to fuel cells and regenerative fuel cell systems. It also highlights the features of this technology for enabling future NASA missions to the moon, near-Earth asteroids and Mars.Read More...
The Long and Storied Path to Human Asteroid Exploration
The Long and Storied Path to Human Asteroid Exploration
Within NASA's new FY2014 budget proposal lies a project known as the Asteroid Retrieval and Utilization Mission.Read More...
NASA's Asteroid Initiative Benefits From Rich History
NASA's Asteroid Initiative Benefits From Rich History
NASA's FY2014 budget proposal includes a plan to robotically capture a small near-Earth asteroid and redirect it safely to a stable orbit in the Earth-moon system where astronauts can visit and explore it.Read More...
Collision Course? A Comet Heads for Mars
Collision Course? A Comet Heads for Mars
A comet is heading for Mars, and there is a chance that it might hit the Red Planet in October 2014. An impact wouldn't necessarily mean the end of NASA's Mars program. But it would transform the program along with Mars itself.Read More...
Sunset Comet
Sunset Comet
For a comet, visiting the sun is risky business. Fierce solar heat vaporizes gases long frozen in the fragile nucleus, breaking up some comets and completely destroying others.Read More...
Prime Time for PANSTARRS
Prime Time for PANSTARRS
This week is prime time for observing this comet. (Next opportunity, the year 108,013 +/- a few hundred or thousand years.)Read More...
What Exploded over Russia?
What Exploded over Russia?
"It was a meteor strike--the most powerful since the Tunguska event of 1908," says Bill Cooke of NASA's Meteoroid Environment Office.Read More...
One Close Fly-by: DA14 - What We Learn from NEOs
One Close Fly-by: DA14 - What We Learn from NEOs
On February 15, 2013, asteroid 2012 DA14, a 50-meter stony asteroid, will pass the Earth at a distance of about 27,680 kilometers (17,200 miles).Read More...
Possible Seismic Activity on Asteroid 2012 DA14
Possible Seismic Activity on Asteroid 2012 DA14
For eons, Earth has felt the tremors of asteroids striking our planet. From the extinction of the dinosaurs 65 million years ago to the felled forests around Tunguska in 1908, the space rocks keep coming. This week, Earth strikes back.Read More...
Asteroid DA14 Flyby Toolkit
Asteroid DA14 Flyby Toolkit
Everything you need to know about Friday's historic asteroid flyby.Read More...
50 Years of Robotic Planetary Exploration: Julie Castillo-Rogez, Planetary Geophysicist at the Jet Propulsion Laboratory (JPL)
50 Years of Robotic Planetary Exploration: Julie Castillo-Rogez, Planetary Geophysicist at the Jet Propulsion Laboratory (JPL)
We asked them and here is what the experts had to say about the last 50 years of planetary robotic exploration.Read More...
A Possible Naked-eye Comet in March
A Possible Naked-eye Comet in March
An Oort Cloud comet could be heading our way now.Read More...
State of the Solar System
State of the Solar System
As the president prepares to give his annual State of the Union Address, we offer our own update from the ongoing exploration of our cosmic neighborhood.Read More...
Asteroid 2012 DA14 - Earth Flyby Reality Check
Asteroid 2012 DA14 - Earth Flyby Reality Check
Small near-Earth asteroid 2012 DA14 will pass very close to Earth on February 15, so close that it will pass inside the ring of geosynchronous weather and communications satellites.Read More...
Record Setting Asteroid Flyby
Record Setting Asteroid Flyby
On Feb. 15th an asteroid about half the size of a football field will fly past Earth closer than many man-made satellites. Since regular sky surveys began in the 1990s, astronomers have never seen an object so big come so close to our planet.Read More...
Comet of the Century?
Comet of the Century?
Later this year, "Comet ISON" could blossom into a striking naked eye object visible even in broad daylight.Read More...
Big Asteroid Tumbles Harmlessly Past Earth
Big Asteroid Tumbles Harmlessly Past Earth
Asteroid 4179 Toutatis is tumbling past Earth this week. Astronomers are taking advantage of the flyby to ping the space rock using NASA radars and obtain images of unprecedented clarity.Read More...
A New Meteor Shower in December?
A New Meteor Shower in December?
If you're outdoors after sunset this week, be alert for meteors. Not only is the Geminid meteor shower active as Earth passes through a stream of debris from "rock comet" 3200 Phaethon, but also a new meteor shower could make an appearance.Read More...
50 Years of Robotic Planetary Exploration: Anita Cochran (Assistant Director of the McDonald Observatory and a Senior Research Scientist at the University of Texas at Austin)
50 Years of Robotic Planetary Exploration: Nancy Grace Roman (Retired Chief of NASA's Astronomy and Relativity Programs at NASA Headquarters)
50 Years of Robotic Planetary Exploration: Nancy Grace Roman (Retired Chief of NASA's Astronomy and Relativity Programs at NASA Headquarters)
We asked them and here is what the experts had to say about the last 50 years of planetary robotic exploration.Read More...
How to Hunt a Space Rock
How to Hunt a Space Rock
Recently, meteorite hunters tracked down cosmic debris in order to test a "lab on a chip" destined for future spacecraft.Read More...
Big Sun-Diving Comet Discovered
Big Sun-Diving Comet Discovered
Dr. Tony Phillips reports on his personal website -- spaceweather.com -- about a newly-discovered comet that may buzz the sun next year.Read More...
50 Years of Robotic Planetary Exploration: Ralph Carruth (Manager, Materials and Processes Laboratory at NASA's Marshall Space Flight Center)
50 Years of Robotic Planetary Exploration: Ralph Carruth (Manager, Materials and Processes Laboratory at NASA's Marshall Space Flight Center)
We asked them and here is what the experts had to say about the last 50 years of planetary robotic exploration.Read More...
A New Count of Potentially Hazardous Asteroids
A New Count of Potentially Hazardous Asteroids
Observations from NASA's Wide-field Infrared Survey Explorer (WISE) have led to the best assessment yet of our solar system's population of potentially hazardous asteroids.Read More...
Impacts Could be Boon for Subterranean Life
Research... at a Glance
Impacts Could be Boon for Subterranean Life
A drilling project into the Chesapeake Bay impact structure has found evidence that the subsurface may become more habitable after a large impactRead More...
50 Years of Robotic Planetary Exploration: Yvonne Pendleton (Director at NASA's Lunar Science Institute)
50 Years of Robotic Planetary Exploration: Yvonne Pendleton (Director at NASA's Lunar Science Institute)
We asked them and here is what the experts had to say about the last 50 years of planetary robotic exploration.Read More...
50 Years of Robotic Planetary Exploration: Michelle Thaller (Assistant Director of Science for Communications at the Goddard Space Flight Center)
50 Years of Robotic Planetary Exploration: Michelle Thaller (Assistant Director of Science for Communications at the Goddard Space Flight Center)
We asked them and here is what the experts had to say about the last 50 years of planetary robotic exploration.Read More...
50 Years of Robotic Planetary Exploration: Jeff Cuzzi (Research Scientist at NASA Ames Research Center)
50 Years of Robotic Planetary Exploration: Jeff Cuzzi (Research Scientist at NASA Ames Research Center)
We asked them and here is what the experts had to say about the last 50 years of planetary robotic exploration.Read More...
The Fireballs of February
The Fireballs of February
In the middle of the night on February 13th, something disturbed the animal population of rural Portal, Georgia. Cows started mooing anxiously and local dogs howled at the sky. The cause of the commotion was a rock from space.Read More...
Radioisotope Power Systems:  Power to Explore
Research... at a Glance
Radioisotope Power Systems: Power to Explore
For more than four decades, Radioisotope Power Systems (RPS) have played a critical role in the exploration of space, enabling missions of scientific discovery to destinations across the solar system.Read More...
Mission to Land on a Comet
Mission to Land on a Comet
Europe's Rosetta spacecraft is en route to intercept a comet­--and to make history. In 2014, Rosetta will enter orbit around 67P/Churyumov-Gerasimenko and land a probe on it for a front row seat as the comet heads toward the heat of the sun.Read More...
Comet Corpses in the Solar Wind
Comet Corpses in the Solar Wind
A paper published in today's issue of Science raises an intriguing new possibility for astronomers: unearthing comet corpses in the solar wind. The new research is based on dramatic images of a comet disintegrating in the sun's atmosphere last July.Read More...
Ices of the Universe
Ices of the Universe
On January 24, 2011, Dr. Murthy Gudipati, scientist at NASA's Jet Propulsion Laboratory presented "Ices of the Universe," a lecture focusing on ices found in the solar system, including nitrogen ice on Triton, carbon dioxide ice on Mars, and moreRead More...
50 Years of Robotic Planetary Exploration: Peter Jenniskens (Research Scientist at the SETI Institute and NASA Ames Research Center)
50 Years of Robotic Planetary Exploration: Peter Jenniskens (Research Scientist at the SETI Institute and NASA Ames Research Center)
We asked them and here is what the experts had to say about the last 50 years of planetary robotic exploration.Read More...
Comet Lovejoy Plunges into the Sun ... and Survives
Comet Lovejoy Plunges into the Sun ... and Survives
Sungrazing Comet Lovejoy has shocked astronomers by surviving its "death plunge" into the sun. Must-see movies of the comet's passage through the sun's atmosphere are featured in today's story from Science@NASA.Read More...
NASA Plans to Visit a Near-Earth Asteroid
NASA Plans to Visit a Near-Earth Asteroid
In a few years a NASA spacecraft will seek the building blocks of life in a shovelful of asteroid dirt. The OSIRIS-REx spacecraft is targeted for launch in September 2016.Read More...
NASA Research Shows DNA Building Blocks Can Be Made in Space
NASA Research Shows DNA Building Blocks Can Be Made in Space
NASA-funded researchers have found more evidence meteorites can carry DNA components created in space.Read More...
Meteors from Halley's Comet
Meteors from Halley's Comet
Looking for an adventure? Get up in the wee hours of the morning May 6th and head out into the country, far from the city lights. You won't be alone. The birds will be up and singing about the coming dawn, and about the eta Aquarid meteor shower.Read More...
Stardust-NExT Mission Delivers Striking Images of Man-Made Crater on Comet Tempel 1
Stardust-NExT Mission Delivers Striking Images of Man-Made Crater on Comet Tempel 1
The spacecraft made its closest approach to Comet Tempel 1 on Monday, Feb. 14, at 8:40 p.m. PST (11:40 p.m. EST) at a distance of approximately 178 kilometers (111 miles). Stardust took 72 high-resolution images of the comet.Read More...
The Two Faces of Tempel 1
The Two Faces of Tempel 1
Whichever part of comet Tempel 1 is facing toward Stardust when the spacecraft zips by the comet tonight should provide some great new science.Read More...
Five Things About NASA's Valentine's Day Comet
Five Things About NASA's Valentine's Day Comet
Here are five facts you should know about NASA's Stardust-NExT spacecraft as it prepares for a Valentine's "date" with comet Tempel 1. Feel free to sing along!Read More...
NASA Spacecraft Closes in on Comet Tempel 1
NASA Spacecraft Closes in on Comet Tempel 1
NASA is about to discover how solar heat devours a comet as the Stardust-NExT probe closes in for a Valentine's Day encounter with Tempel 1.Read More...
The Man Behind Comet Hartley 2
The Man Behind Comet Hartley 2
Twenty-four years ago, Malcolm Hartley discovered a comet. Recently, he watched as a NASA spacecraft visited it up close.Read More...
WISE Captures Key Images that will help EPOXI Mission's Comet Encounter
WISE Captures Key Images that will help EPOXI Mission's Comet Encounter
NASA's Wide-field Infrared Survey Explorer, or WISE, caught a glimpse of the comet that the NASA's EPOXI mission will visit on November 4, 2010. The WISE observation will help the EPOXI team put together a large-scale picture of the comet.Read More...
NASA Spacecraft Hurtles Toward Active Comet Hartley 2
NASA Spacecraft Hurtles Toward Active Comet Hartley 2
NASA's Deep Impact/EPOXI spacecraft is hurtling toward Comet Hartley 2 for a breathtaking 435-mile flyby on Nov. 4th.Read More...
How to See the Best Meteor Showers
How to See the Best Meteor Showers
Whether you're watching from a downtown area or the dark countryside, here are some tips to help you enjoy these celestial shows of shooting stars.Read More...
EPOXI:  Deep Impact Flyby Spacecraft Extended Mission
EPOXI: Deep Impact Flyby Spacecraft Extended Mission
The EPOXI mission may help define how the Solar System originated and how it is evolving.Read More...
Venus Disappears During Meteor Shower
Venus Disappears During Meteor Shower
A meteor shower. A crescent Moon. A disappearing planet. These three things will be on display April 22nd when the Moon occults Venus during the annual Lyrid meteor shower.Read More...
Get Involved with Stardust
Get Involved with Stardust
Internet users can help search for dust grains in Stardust's aerogel.Read More...
How to Bring a Comet Home
How to Bring a Comet Home
The Stardust spacecraft finally returned to Earth with some precious cargo.Read More...
Observing Stardust's Sample Return to Earth
Observing Stardust's Sample Return to Earth
NASA's Stardust Sample Return Capsule and Entry Path Visible in NorthwestRead More...
Observing Deep Impact's Comet Tempel 1
Observing Deep Impact's Comet Tempel 1
Viewing Comet Tempel OneRead More...
Apparition of Comet Hale-Bopp
Apparition of Comet Hale-Bopp
In an era where the celestial realm was the realm of the gods, the sudden appearance of an unknown object which dominated the night sky was terrifying.Read More...
Going for Maximum Impact
Going for Maximum Impact
Deep Impact's unique impactor is designed to blast a hole in a comet - possibly opening a window into our solar system's mysterious past.Read More...
 
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