An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

No matter how many missions to Mars she takes part in, the sheer joy of unearthing discoveries about the red planet never ...

This finding explains the discrepancy between the number of basins detected on the Moon (~40) and the number predicted (~300) by an accretion scenario of planet formation.

Understanding that Earth-like planets tend to form around star systems that formed around the inner regions of the galaxy. Here, the supply of metals is more abundant, and even though the stellar ...

It’s been pretty cold recently, so you may need to channel your inner polar bear to get a good view of the ongoing planetary ...

Planets with suns like Wolf 359 are subject to huge blasts of radiation that raise questions about their long-term ...

Understanding that Earth-like planets tend to form around star systems that formed around the inner regions of the Galaxy. Here the supply of metals is more abundant and, even though the stellar ...

To tackle this puzzle, Malhotra and colleagues considered a less-examined scenario: that a visiting star-size object tweaked these planets' paths around 4 billion years ago. Related: Giant 'kidney ...

While the composition of gas and dust in a molecular cloud is fairly uniform, everything changes once a star begins to form.

This once-in-a-generation shift is a pivotal power play in a saga that will unfold in the years and decades to come.