The mission log of Useless
Useless is the network’s eraser-in-residence. After owls, hedgehogs, bees, sharks and a T. rex, it has been put in charge of mission control. Nobody remembers agreeing to this. Every fact in here has been checked by someone more qualified, i.e. anyone.

- Sol 1
A day on Mars is called a sol. I asked for a sol off. They said every day is a sol. I’ve lodged a complaint with nobody. NASA Science: Mars facts
- Sol 2
Mars is red because its dirt is rusty. I left my bike out once. Same principle, smaller planet. NASA Science: Mars facts
- Sol 3
On Mars I’d weigh 38% of what I weigh here. I’m an eraser. That’s still not enough to rub out a whole planet, I checked. NASA: Humans to Mars
- Sol 4
Olympus Mons is more than 40 km tall. I climbed a pencil case once. I needed a sit down. NASA Science: Mars facts
- Sol 5
Sunsets on Mars are blue. Somebody tell the Martian greeting-card industry before it’s too late. NASA Photojournal: Sunset in Mars’ Gale Crater
- Sol 6
Phobos goes round Mars three times a day. I go round the kitchen three times a day looking for my glasses. I don’t have glasses. NASA Science: Mars moons
- Sol 7
Mariner 4’s team coloured in the first Mars picture by hand with pastels. I would have helped. I’d have rubbed out the wrong bits. NASA Science: Mariner 4
- Sol 8
Pathfinder bounced about 15 times on airbags before it stopped. That is exactly how I get out of bed on Mondays. NASA Science: Mars Pathfinder
- Sol 9
Perseverance’s top speed is 152 metres an hour. I got overtaken by it in a dream. I woke up angry. NASA Science: Perseverance rover components
- Sol 10
Ingenuity was meant to fly five times. It flew 72. Overachiever. I respect it and I resent it. NASA Science: Ingenuity Mars Helicopter
- Sol 11
MOXIE made 122 grams of oxygen on Mars, about what a small dog breathes in 10 hours. I asked which dog. Nobody knew. I’m calling him Dave. NASA Science: Perseverance instruments
- Sol 12
Mars’s moons are named after the horses that pulled a war god’s chariot. My bike is named Kevin. Kevin has a flat. NASA Science: Mars facts
- Sol 13
The ‘Face on Mars’ was just shadows on a hill. I’ve also been mistaken for a face. It was a rubber with googly eyes. Wait. NASA Science: The “Face on Mars”
- Sol 14
A Mars year is 687 Earth days. So on Mars I’d only be about half as old. I’d also be very cold. Swings and roundabouts. NASA Science: Mars facts
- Sol 15
Phobos is creeping towards Mars by 1.8 m every hundred years. Slower than me walking to the dentist, and that’s saying something. NASA Science: Mars moons
- Sol 16
Valles Marineris would stretch from California to New York. My longest journey is from the pencil pot to under the sofa. NASA Science: Mars facts