A Road Trip with Commander Chris

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How Mega-Constellations Are Learning to Manage Themselves November 21, 2025
Satellite megaconstellations are quickly becoming the backbone of a number of industries. Cellular communication, GPS, weather monitoring and more are now, at least in part, reliant on the networks of thousands of satellites cruising by in low Earth orbit. But, as these constellations grow into the tens of thousands of individual members, the strain they […]
Where Was the Big Bang? November 20, 2025
Let’s start out with something that we can say for certain: we live in an expanding universe.
Tracking Mars' Ice Ages From Space November 20, 2025
Travelling up from Mars’s equator towards its north pole, we find Coloe Fossae: a set of intriguing scratches within a region marked by deep valleys, speckled craters, and signs of an ancient ice age.
The Man in the Moon Gets a New Scar November 20, 2025
The Moon gains new craters all the time, but catching one forming is surprisingly rare. Between 2009 and 2012, something struck our celestial companion just north of Römer crater, creating a bright 22 metre scar with distinctive rays of ejected material spreading outward. While the Moon's most dramatic bombardment ended billions of years ago, this […]
Seeing an Interstellar Comet Through Martian Eyes November 20, 2025
When an interstellar comet tears through our Solar System at 250,000 kilometres per hour, pinning down its exact trajectory becomes a race against time. ESA astronomers achieved something unprecedented in October 2025, using observations from the ExoMars Trace Gas Orbiter to improve predictions of comet 3I/ATLAS's path by a factor of ten. By triangulating data […]