A recurring cloud over the Martian volcano Arsia Mons turns out to freeze straight out of water vapour, with no dust grain to seed it, a process never before caught in any planetary atmosphere. We also look at the first interstellar detection of fully deuterated methanol by ALMA, a white dwarf that may be feeding on a planet born after its star died, and three quiet dwarf galaxies near M101 found in public archive data by a first year undergraduate.

Organic molecules play a central role in understanding the past habitability of Mars. These are compounds built primarily from carbon that serve as the foundation of life on Earth.

In 2013, NASA's Curiosity rover detected organic compounds in Martian rock samples, prompting further investigation into their implications for the planet's history.

In late 2018, the European Space Agency's Mars Express orbiter gathered exciting radar data suggesting the presence of liquid water beneath Mars' south polar ice cap.

Earth's geology is uniquely characterised, within the solar system, by its layered differentiation and active plate tectonics, facilitating ongoing crustal recycling.

Since 2000, evidence for Mars having contained liquid water on its surface has been well documented, with the extent to which this has been the case still being a debate today.

NASA's lander InSight reveals details about the internal structure of Mars, from crust to core.

This week, Venus and Mars come close together in our night sky - ideal for naked-eye astronomy.

New results from ESA mission Mars Express hint at the presence of numerous lakes below the Martian surface.

NASA’s drone-helicopter Ingenuity has achieved two successful flights on Mars.  

With “Perseverance” and its landing back at the end of February, there was also a small friend brought to the Martian surface called “Ingenuity”.

Perseverance's images have been all over the news, here is a summary of the mission!