IRON AND ICE

News About Asteroids And Comets

2,240 articles

Osiris-REX enters close orbit around asteroid Bennu
Jan 01, 2019 (SPX)
"The team continued our long string of successes by executing the orbit-insertion maneuver perfectly," said Dante Lauretta, OSIRIS-REx principal investigator at...
Astrodynamics and the Gravity Measurement Descent Operation
Dec 27, 2018 (SPX)
From August 6 - 7, 2018, the "Gravity Measurement Descent Operation" was performed to estimate the strength of asteroid Ryugu's gravity. Hayabusa2 initially des...
Communication interception can be traced through meteor trails
Dec 27, 2018 (SPX)
Associate Professor Amir Sulimov explains, "Each meteor trail forms a kind of a shadow resembling an ellipse on the Earth's surface. All communication stations ...
Holiday Asteroid Imaged with NASA Radar
Dec 24, 2018 (JPL)
The asteroid will fly safely past Earth on Saturday, Dec. 22, at a distance of about 1.8 million miles (2.9 million kilometers). This will be the asteroid's clo...
NASA telescopes take a close look at the brightest comet of 2018
Dec 21, 2018 (SPX)
NASA's Hubble Space Telescope photographed comet 46P/Wirtanen on Dec. 13, when the comet was 7.4 million miles (12 million kilometers) from Earth. In this visib...
Navigating NASA's first mission to the Trojan asteroids
Dec 21, 2018 (SPX)
In 2021, the feat of navigation that is the Lucy mission will launch. To steer Lucy towards its targets doesn't simply involve programming a map into a spacecra...
ALMA gives passing comet its close-up
Dec 21, 2018 (SPX)
ALMA imaged the comet when it was approximately 16.5 million kilometers from Earth. At its closet on December 16, the comet - one of the brightest in years - wa...
Space telescope detects water in a number of asteroids
Dec 19, 2018 (SPX)
The findings were made by the team led by the Project Assistant Professor Fumihiko Usui (Graduate School of Science, Kobe University), the Associate Senior Rese...
Las Cumbres builds new instrument to study December comet
Dec 17, 2018 (SPX)
"Comet 46P/Wirtanen has been a popular proposed target comet for several spacecraft missions. This has resulted in intensive observation campaigns from the grou...
GMV leads the system that drives the HERA mission for planetary defence
Dec 14, 2018 (SPX)
Based on the heritage of the Asteroid Impact Mission (AIM) project, HERA aims to be the first interplanetary mission that visits a binary asteroid system, Didym...
Watch Comet 46P Wirtanen as it nears Earth
Dec 14, 2018 (SPX)
When you do, you'll be taking in the sight of a comet discovered by Kenosha native Carl Wirtanen, a well-regarded hunter of astronomical objects and surveyor of...
Rosetta witnesses birth of baby bow shock around comet
Dec 13, 2018 (ESA)
From 2014 to 2016, ESA's Rosetta spacecraft studied Comet 67P/Churyumov-Gerasimenko and its surroundings from near and far. It flew directly through the 'bow sh...
Look up at a green, fuzzy comet and shooting stars
Dec 13, 2018 (SPX)
ANU astronomer Dr. Brad Tucker said people should enjoy watching Comet 46P/Wirtanen, also known as the Christmas comet, while they can because they won't see th...
Instrument on NASA probe finds hydrated minerals on Asteroid Bennu
Dec 12, 2018 (SPX)
The evidence comes from two onboard spectrometers, one of them designed and built at Arizona State University's School of Earth and Space Exploration. The disco...
OSIRIS-REx already finds water on Asteroid Bennu
Dec 11, 2018 (SPX)
During the mission's approach phase, between mid-August and early December, the spacecraft traveled 1.4 million miles (2.2 million km) on its journey from Earth...
First Images from OSIRIS-REx Have Scientists Buzzing with Excitement
Dec 11, 2018 (SPX)
Scientists were already buzzing with excitement in November when the spacecraft's long-range cameras began beaming early images of the asteroid. Now, the first ...
Get ready to greet the Geminid Meteors
Dec 10, 2018 (SPX)
Although the Perseids, which arrive each August, are better known, the Geminids often put on a better show. "Maybe because it's cold for so many during this sho...
Evidence for carbon-rich surface on Ceres
Dec 10, 2018 (SPX)
"Ceres is like a chemical factory," said SwRI's Dr. Simone Marchi, a principal scientist who was the lead author of research published in Nature Astronomy. "Amo...
Planetary Defense: The Bennu Experiment
Dec 07, 2018 (SPX)
Generations of planetary scientists will get to study pieces of the primitive materials that formed our cosmic neighborhood and to better understand the role as...
OSIRIS-REx Spacecraft Arrives at Asteroid Bennu
Dec 04, 2018 (SPX)
Now, at about 11.8 miles (19 kilometers) from Bennu's Sun-facing surface, OSIRIS-REx will begin a preliminary survey of the asteroid. The spacecraft will commen...
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