Home Asteroid

Asteroid

Latest

URI graduate student Reilly Hayes (left) and undergraduate Amanda Bednarick examine an outcrop for fossils at Petrified Forest National Park as part of their research. Credit: Amanda Bednarick

Asteroid, climate change not responsible for mass extinction 215 million years ago

Geology Page - May 28, 2020

Asteroid impact

Asteroid impact enriches certain elements in seawater

The Yarrabubba Impact Structure.

Earth’s oldest asteroid strike linked to ‘big thaw’

A world map that shows where similary platinum spikes have been discovered in the world. The latest discovery is at the Wonderkrater site in Limpopo Province, South Africa. Credit: Francis Thackeray/Wits University

New research supports hypothesis that asteroid contributed to mass extinction

Illustration of the giant asteroid collision in outer space that produced the dust that led to an ice age on Earth. Credit: (c) Don Davis, Southwest Research Institute

Dust from a giant asteroid crash caused an ancient ice age

An artist's interpretation of the asteroid impact that wiped out all non-avian dinosaurs. Credit: NASA/Don Davis.

Rocks at asteroid impact site record first day of dinosaur extinction

Geology Page - September 16, 2019

$A model for the compositional evolution of the early Earth's crust due to fractional crystallization of impact melt sheets followed by detachment and sinking of their dense primitive portions towards the crust-mantle boundary. Credit: Rais Latypov$

Ancient asteroid impacts played a role in creation of Earth’s future...

Geology Page - February 2, 2019

Image depicts the change in impact rate modeled in this paper. Some of the craters used in the study on both the moon and Earth are highlighted in the background. Credit: Data from NASA GSFC / LRO / Arizona State University; Artwork by Rebecca Ghent

Scientists find increase in asteroid impacts on ancient Earth by studying...

Geology Page - January 18, 2019

A mile-long sediment core drilled by the International Ocean Discovery Program helped researchers uncover how the Chicxulub crater formed.

Crater from asteroid that killed the dinosaurs reveals how broken rocks...

Geology Page - October 26, 2018

Asteroid impact earth

Site of asteroid impact changed the history of life

Geology Page - November 11, 2017

A simulation of the crater and impact plume formed eight seconds after the Chicxulub impact at 45 degrees.

Dinosaur-killing asteroid impact cooled Earth’s climate more than previously thought

Geology Page - November 1, 2017

Dino-killing asteroid’s impact on bird evolution

Geology Page - September 22, 2017

Dino-killing asteroid could have thrust Earth into two years of darkness

Geology Page - August 21, 2017

New study ranks hazardous asteroid effects from least to most destructive

Geology Page - April 19, 2017

Mechanism underlying size-sorting of rubble on asteroid Itokawa revealed

Geology Page - March 9, 2017

Asteroid impacts could create niches for early life, suggests Chicxulub crater...

Geology Page - November 18, 2016

Soot may have killed off the dinosaurs and ammonites

Geology Page - July 15, 2016

Warming pulses in ancient climate record link volcanoes, asteroid impact and...

Geology Page - July 6, 2016

Asteroid day will draw eyes to the stars, but the more...

Geology Page - June 30, 2016

New type of meteorite linked to ancient asteroid collision

Geology Page - June 16, 2016

Clues to ancient giant asteroid found in Western Australia

Geology Page - May 17, 2016

Multiple cosmic impacts 790,000 years ago

Geology Page - February 24, 2016

Scientists find link between comet, asteroid showers and mass extinctions

Geology Page - October 21, 2015

Asteroid impact, volcanism were one-two punch for dinosaurs

Geology Page - October 2, 2015

Quenched glasses, asteroid impacts, and ancient life on Mars

Geology Page - June 11, 2015

12 Page 1 of 2

MOST POPULAR

Zebra Schist : What is Zebra Schist? Where is it found?

May 9, 2019

Volcanic Lightning Could Aid Hazard Response During Eruptions

April 30, 2016

Recent shift in relationship among species that prevailed for more than...

December 17, 2015

Connecting animals to the cloud could help predict earthquakes

May 1, 2015

MORE ARTICLES

Why a big volcanic blow-up at the popular travel destimation Santorini 3200 years ago, but just a few hundred kilometers away, no drama at the volcanoes on Aegina , Methana and Poros islands? Thin sections of the lavas from these four volcanoes yield some of the reasons why. Some minerals only form at greater depths - and the hornblende in the lava from Aegina island indicates that the magma chambers there are deeper than the those underneath the Santorini caldera. But plate tectonics add another, hidden reason also, found research from the University of Johannesburg. Credit: Prof Marlina A. Elburg, University of Johannesburg

A tale of two kinds of volcanoes

The movement of seismic waves through the material of the mantle allows scientists to image Earth's interior, just as a medical ultrasound allows technicians to look inside a blood vessel

Mysterious deep-Earth seismic signature explained

Fossil ancestor shows sharks have a bony past

Artist's impression of the giant dormouse (left) and its nearest living relative the garden dormouse (right). Credit: James Sadler, University of York

Researcher reconstructs skull of two million year-old giant dormouse