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asteroids

Orbits of the asteroids from the Gaia Data Release 3 up to Jupiter’s distance
Posted inNews

Galaxy Mapper Tracks Asteroids Closer to Home

by Jure Japelj 14 July 202214 July 2022

The Gaia mission’s asteroid survey will help dig deeper into the solar system’s rocky history.

Image of the meteorite Allen Hills 83100 illustrating spectral differences
Posted inEditors' Highlights

Pushing the Limits of IR Spectra: Using Nano-FTIR on Meteorites

by David Trang 16 May 202219 January 2023

A new method, nano-FTIR, is used to examine microstructures and processes on grains, displaying its benefit for examining asteroid returned samples through a meteorite.

A wall of ice looms over an expanse of rocks.
Posted inNews

Impact Structure Hidden Under Arctic Ice Dates to the Paleocene

Katherine Kornei, Science Writer by Katherine Kornei 13 April 202213 April 2022

Greenland’s Hiawatha impact structure, more than 30 kilometers in diameter, is much older than previously thought, new results suggest.

A satellite view of the Vredefort impact structure in South Africa
Posted inNews

A Giant Impact Triggered Earthquakes for Thousands of Years

Katherine Kornei, Science Writer by Katherine Kornei 2 February 202214 February 2022

When an asteroid struck South Africa during the Precambrian, earthquakes rocked the region for millennia as Earth’s crust reequilibrated, new research reveals.

Posted inEditors' Highlights

A Deep-Space Origin for Volatile-Rich Asteroids

by Francis Nimmo 19 January 202215 March 2022

Spectral data and modeling suggest that volatile-rich main-belt asteroids initially formed at much greater distances from the Sun (>10 AU).

A bolide in the sky
Posted inNews

Data from Satellites Help Uncover Exploding Meteors

by Emily Moskal 13 December 202113 December 2021

By using data from two lightning-spotting satellites, researchers measure explosions of thousands of small meteors and create a database that could help the planetary defense community.

Artist’s rendering of the near-Earth object Kamo’oalewa
Posted inNews

Asteroid May Be a Chip off the Old Moon

by Stacy Kish 9 December 202127 March 2023

Spectral data suggest that Kamo‘oalewa, a near-Earth asteroid, has a composition similar to lunar rocks.

Asteroids in space
Posted inNews

A Remarkably Constant History of Meteorite Strikes

Katherine Kornei, Science Writer by Katherine Kornei 13 July 20214 October 2021

Researchers dissolve chunks of the ancient seafloor to trace Earth’s impact history and find that colossal clashes between asteroids don’t often trigger an uptick in meteorite strikes.

A large magma furnace pours a mixture of silicate and metallic lava onto a flat surface, with a pool of semicooled lava flowing. The lava is black, orange, yellow, and silver.
Posted inNews

Imagining What a Metal Volcano Would Look Like

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 21 April 202110 November 2021

Large-scale lava experiments are helping scientists imagine how metallic lava would flow across and shape a landscape, either on Earth or on a distant asteroid.

St. George's Church, Nördlingen, surrounded by red roofs.
Posted inNews

An Asteroid “Double Disaster” Struck Germany in the Miocene

Katherine Kornei, Science Writer by Katherine Kornei 27 January 202126 January 2023

By analyzing sediments jostled by ground shaking, researchers have shown that two impact craters near Stuttgart were created by independent asteroid impacts rather than a binary asteroid strike.

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