Mars: how we discovered two huge, unusual impact craters – and the secrets they unveil

By Benjamin Fernando, Junior fellow, University of Oxford

Most of the worlds of our Solar System are pockmarked with impact craters. These bear testament to the violence of the early days of the Sun, when asteroids, comets and entire planets routinely collided with and annihilated each other.

Our own Moon was most likely formed by one of these collisions, and is itself home to the largest impact feature in the Solar System – the South Pole/Aitken Basin, some 2,500km across. Mars’ vast, flat northern deserts may too have formed during a…

Read complete article

~	TikTok fears point to larger problem: Poor media literacy in the social media age

~	Donald Trump trial: why it took so long to select a jury and how the process is different to the UK

~	Bitcoin is halving again – what does that mean for the cryptocurrency and the market?

~	Liz Truss: an economist explains what she got wrong (and what she’s actually right about)

~	Domestic politics will be a key factor in how far things escalate between Israel and Iran

~	Peter Higgs’ famous particle discovery is now at the heart of strategies to unlock the secrets of the universe

~	Why you shouldn’t be afraid to start running after middle age

~	The world’s oldest conjoined twins have died – what we know about this rare condition

~	Stonehenge may have aligned with the Moon as well as the Sun

~	Rhapsody in Blue: celebrating 100 years of Gershwin’s groundbreaking classical-jazz masterpiece