Volcanic activity

The asteroid that wiped out the dinosaurs. Illustration: depositphotos.com

The asteroid that wiped out the dinosaurs was a carbonaceous asteroid

This asteroid, which led to the extinction of the dinosaurs, came from a C-type asteroid that originated beyond Jupiter, thus ruling out other hypotheses such as volcanic activity or comets

Venus' evil twin or Earth's lost brother? The intriguing case of Gliese 12 b

The discovery of Gliese 12 b, a Venus-like planet just 40 light-years away, offers new opportunities to understand the conditions that support life in the universe. "Evil Twin" it gets a lot more
A new model of the early impacts on Venus explains how Earth's sister planet maintained a young surface despite not having plate tectonics. Credit: Southwest Research Institute

Changes to the face of the planet: Early high-energy impacts may have fueled the volcanoes on Venus

A team led by the Southwest Research Institute (SwRI) has created a model of the early impacts on Venus to explain how Earth's sister planet maintained a young surface despite having no tectonics.
Image 1. Topography and SAR image of the research area on Venus. Color indicates altitudes, measured relative to the planet's mean radius from Magellan's reticulated altitude data. The X and Y axes represent geographic longitude and latitude of the planet. From the study.

A new analysis of data from the XNUMXs has proven that volcanoes are still erupting on Venus today

The article "Surface changes observed on a volcano on Venus during the Magellan mission" describes the analysis of the observations in which surface changes were discovered on the Sif Mons volcano during the Magellan spacecraft mission