Walkers and hikers have an exciting opportunity to find meteorite fragments that scattered over Scotland this summer, scientists say. The bright meteor was witnessed by some Scots as it streaked ...

The inner solar system is a lot calmer than it was 4 billion years ago, during what’s known as the heavy bombardment period. Over the course of that violent stretch, which lasted about 500 million ...

Most of this chaos likely unfolded in Mars’s first 100 million years,” said Dr. Constantinos Charalambous of Imperial College ...