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Marcus F

Marcus writes practical STEM guides: quick "I'm bored" fixes, honest robotics kit reviews, telescope-free astronomy, and space facts. No fluff, just what works for genuinely curious kids. He's obsessed with activities that actually deliver.

Jupiter: The Planet That Could Have Been a Star

Jupiter: The Planet That Could Have Been a Star

Beneath Europa's smooth shell of ice lies a saltwater ocean that may contain twice as much water as all of Earth's oceans combined. A spacecraft is on its way right now to find out if something could be living in it. Nobody knows yet. That is the best kind of answer.

Cold Footprints on Jupiter, and a Comet Heading for the Sun

Cold Footprints on Jupiter, and a Comet Heading for the Sun

Cold spots in Jupiter’s aurora caused by its moons. Scientists have known about these footprints for years. But until now, they’d only measured how bright they were, never what was physically happening inside them.

Humans Are Going Back to the Moon

Humans Are Going Back to the Moon

No human has left low Earth orbit since 1972. Artemis II will send four astronauts around the Moon and back, further from Earth than anyone in history. After fifty-three years of looking, we're finally going again.

Space Is Completely, Perfectly Silent

Space Is Completely, Perfectly Silent

If you've ever heard an explosion in a space film: that's fiction.

Mars: The Planet We Almost Recognise

Mars: The Planet We Almost Recognise

Sunsets on Mars are blue. On Earth, scattered light gives us red and orange sunsets. On Mars, fine dust in the atmosphere scatters the light differently, and the Sun sets in a cold, quiet blue. It is one of the most unexpectedly moving pictures ever taken on another planet.

Venus: Earth's Twin That Chose a Very Different Life

Venus: Earth's Twin That Chose a Very Different Life

Venus is almost exactly the same size as Earth, made from the same stuff, born in the same part of space. Scientists once imagined oceans and jungles. What they found was a scorching world of volcanoes and acid rain that never reaches the ground

Sunsets on Mars are Blue

Sunsets on Mars are Blue

On Mars, the daytime sky is pink. But at sunset? It turns blue. The same dust that makes Mars red all day long is what creates that cool blue glow around the sun as it sets. Space is full of beautiful surprises.