We present a new scaling law to predict the loss of atmosphere from planetary collisions for any speed, angle, impactor mass, target mass, and body compositions, in the regime of […]
Impact events
Posted inExoplanets, -moons, -comets, Extinction events, Impact events, Press Release, Proxima Centauri
Risks For Life On Proxima b From Sterilizing Asteroid Impacts
We consider the implications that a debris belt located between Proxima b and Proxima c would pose for the rate of large asteroid impacts that could sterilize Proxima b from […]
Posted inImpact events, Press Release
Ancient Asteroid Impacts Created The Ingredients Of Life On Earth And Mars
A new study reveals that asteroid impact sites in the ocean may possess a crucial link in explaining the formation of the essential molecules for life. The study discovered the […]
Posted inImpact events, Press Release
Impact Crater Left a Steaming Cauldron Following the Dinosaurs' Demise
A new study reveals the Chicxulub impact crater may have harbored a vast and long-lived hydrothermal system after the catastrophic impact event linked to the extinction of dinosaurs 66 million […]
Posted inImpact events, Press Release
Dinosaur-dooming Asteroid Struck Earth At The Deadliest Possible Angle
The simulations show that the asteroid hit Earth at an angle of about 60 degrees, which maximised the amount of climate-changing gases thrust into the upper atmosphere. Such a strike […]
Posted inImpact events, Press Release
Study Links Ocean Deoxygenation To Ancient Die-off
In a new study, Stanford researchers have strongly bolstered the theory that a lack of oxygen in Earth’s oceans contributed to a devastating die-off approximately 444 million years ago. The […]
Posted inImpact events, Press Release
Pleistocene Comet Impact And Earth's Culture And Environment
Before the Taqba Dam impounded the Euphrates River in northern Syria in the 1970s, an archaeological site named Abu Hureyra bore witness to the moment ancient nomadic people first settled […]
Posted inImpact events, Press Release
Asteroid Impact Enriches Certain Elements In Seawater
Asteroid strikes upset the environment and provide clues via the elements they leave behind. Now, University of Tsukuba researchers have linked elements that are enriched in the Cretaceous-Paleogene (KPg) boundary […]
Posted inImpact events, Press Release
Atmospheric Erosion by Giant Impacts Onto Terrestrial Planets
We examine the mechanisms by which atmosphere can be eroded by giant impacts onto Earth-like planets with thin atmospheres, using 3D smoothed particle hydrodynamics simulations with sufficient resolution to directly […]
Posted inImpact events, Press Release
Earth's Oldest Asteroid Strike Linked to Snowball Earth Thaw
Curtin University scientists have discovered Earth’s oldest asteroid strike occurred at Yarrabubba, in outback Western Australia, and coincided with the end of a global deep freeze known as a Snowball […]