IRON AND ICE

News About Asteroids And Comets

2,240 articles

Giant impact crater in Greenland occurred a few million years after dinosaurs went extinct
Mar 10, 2022 (SPX)
Ever since 2015, when researchers at the University of Copenhagen's GLOBE Institute discovered the Hiawatha impact crater in northwestern Greenland, uncertainty...
The state of planetary defense in the 2020s
Mar 03, 2022 (The Conversation)
As a scholar who studies space and international security, it is my job to ask what the likelihood of an object crashing into the planet really is - and whether...
Canberra well placed to play a role in global asteroid detection
Mar 01, 2022 (SPX)
NASA's Near-Earth Object Observation Program painstakingly documents all asteroid sightings that could pose a potential threat to our planet. However, geographi...
The rise and fall of the riskiest asteroid in a decade
Feb 25, 2022 (ESA)
Initial observations of an asteroid dubbed '2022 AE1' showed a potential Earth impact on 4 July 2023 - not enough time to attempt deflection and large enough to...
Organic compounds on Ceres
Feb 25, 2022 (SPX)
For the first time, they evaluated camera images from the last phase of NASA's Dawn mission, which reveal geological structures only a few meters in size. The D...
The last day of the dinosaurs
Feb 24, 2022 (SPX)
The researchers from Uppsala University in Sweden, Vrije Universiteit (VU) in Amsterdam, Vrije Universiteit in Brussels (VUB), and the European Synchrotron Radi...
Fingerprinting minerals to better understand how they are affected by meteorite collisions
Feb 21, 2022 (SPX)
"If you compare an average mineral to one that's been involved in a meteoritic impact, you'll find some unique features in the shocked one," says Arianna Gleaso...
Psyche, the iron giant of asteroids, may be less iron than researchers thought
Feb 15, 2022 (SPX)
Psyche, which orbits the sun in the asteroid belt between Mars and Jupiter, is the largest of the M-type asteroids, which are composed chiefly of iron and nicke...
Secondary cratering on Earth: The Wyoming impact crater field
Feb 15, 2022 (SPX)
After discovering the first craters, the team initially suspected that they are a crater-strewn field, formed by the breakup of an asteroid that entered the atm...
Asteroid sharing Earth's orbit discovered - could it help future space missions?
Feb 09, 2022 (SPX)
This object, known as 2020 XL5, was first spotted in December 2020 using Pan-STARRS telescopes on the summit of Haleakala on the Hawaiian island of Maui. But de...
Youngest pair of asteroids in solar system detected
Feb 07, 2022 (SPX)
The majority of asteroids in our solar system reside in the area between the orbits of Mars and Jupiter known as the main asteroid belt. Closer to home, scienti...
Lowell helps confirm second Earth Trojan
Feb 02, 2022 (SPX)
The discovery of ETAs is significant because they provide insight into the dynamical evolution of the solar system. Also, ETAs are ideal candidates for potentia...
Newly discovered asteroid just second of its kind
Feb 02, 2022 (ESA)
But the king of the planets doesn't hold a monopoly on Trojan asteroids. The physics that gives rise to the formation of these distinctive collections of ancien...
Did comet's fiery destruction lead to downfall of ancient Hopewell?
Feb 02, 2022 (SPX)
Researchers with the University of Cincinnati found evidence of a cosmic airburst at 11 Hopewell archaeological sites in three states stretching across the Ohio...
New Earth Trojan asteroid
Feb 02, 2022 (SPX)
All celestial objects that roam around our solar system feel the gravitational influence of all the other massive bodies that build it, including the Sun and th...
Why are comet heads green - but not their tails?
Feb 01, 2022 (SPX)
The scientific explanation, published in PNAS on Dec. 21, has to do with the way the molecule dicarbon (C2) gets blown apart by sunlight. The other part of the ...
NASA asteroid tracking system now capable of full sky search
Feb 01, 2022 (SPX)
"An important part of planetary defense is finding asteroids before they find us, so if necessary, we can get them before they get us" said Kelly Fast, Near-Ear...
Solar Orbiter catches a second comet by the tail
Jan 26, 2022 (ESA)
For a spacecraft designed to conduct unique studies of the Sun, Solar Orbiter is also making a name for itself exploring comets. For several days centred on 120...
Looking Up at the Asteroids in the Neighborhood
Jan 21, 2022 (SPX)
One likely reason Americans are paying more attention is because many millions have watched the Netflix film Don't Look Up, about a comet that's headed for Eart...
Asteroid with a refreshed surface
Jan 10, 2022 (SPX)
Observations of the near-infrared spectra of the 114km diameter asteroid 596 Scheila that orbits within the asteroid belt revealed that the asteroid changed col...
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