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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.

Neptune: The Planet That Shouldn't Be This Angry

Neptune: The Planet That Shouldn't Be This Angry

On Neptune, the wind blows at 2,000 kilometres per hour. The planet sits thirty times further from the Sun than we do, where sunlight barely reaches. It should be a still, frozen marble. Instead it has the most violent weather in the solar system. Nobody is sure why.

It Rains Diamonds on Neptune. It Snows Metal on Venus.

It Rains Diamonds on Neptune. It Snows Metal on Venus.

Two facts about weather in the solar system, neither of which involves water. Deep inside Neptune, methane is crushed into diamond and falls through the planet in a slow, impossible rain. On Venus, metals evaporate off the hot valleys and condense as frost on the mountains

Things Nobody Alive Has Ever Seen

Things Nobody Alive Has Ever Seen

Two sights arrived within a week of each other. Artemis II's crew watched a 54-minute solar eclipse from the far side of the Moon. A comet last seen by Neanderthals is now bright enough to catch with the naked eye. Neither will ever happen the same way again.

Uranus: The Planet That Fell Over

Uranus: The Planet That Fell Over

Uranus looks like the quietest planet in the solar system. Beneath that blank face: a world knocked sideways by a planet-sized impact, hiding its heat behind invisible barriers, raining diamonds into its own depths. We've visited once. We stayed a few hours.

Nothing Works the Way You'd Expect

On the Moon you'd weigh a sixth of what you weigh now. On Jupiter, more than double. And on Venus, a single day lasts longer than its entire year, the Sun rises in the west, and nobody is entirely sure why.

Saturn: The Planet That Wore Its Crown Late

Saturn: The Planet That Wore Its Crown Late

Saturn's rings may have formed while dinosaurs walked the Earth. The planet is 4.5 billion years old, but its rings are perhaps only 100 million. They are slowly disappearing. We just happen to be alive at the right time to see them

A Star That Died Without Exploding

A Star That Died Without Exploding

A star in the Andromeda galaxy was supposed to explode. Instead, it just went dark. Scientists found it hiding in old telescope data: a supergiant that skipped the supernova and collapsed straight into a black hole. It's only the second time we've caught a star doing this.