午夜福利1000集合

MNN37P Illustration comparing the planets of the Solar System and the Sun on the same scale. The planets are shown to scale relative to each other but their distances are not. From left to right the bodies are: the Sun, Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune.

Will there ever be a time when all our solar system鈥檚 planets align?

It will take so long for an alignment of all the planets to occur that, by then, the sun might have expanded to swallow some of them, say our readers

R2YAK1 Professional washer in black uniform and cap wiping with sponge car wheel of a luxury car during the washing process outdoors

Why are the front wheels of my car much dirtier than the rear ones?

Could land-dwelling octopuses develop technology? (Part 3)

T4AEYJ Stellar explosion shining in deep space, cosmic star blast in Universe. High resolution galaxy background.

This week鈥檚 new questions

Open dishwasher with clean utensils in it; Shutterstock ID 218515030; purchase_order: -; job: -; client: -; other: -

Is there a correct way to fill a dishwasher to maximise cleanliness?

Aerial View of Mount Everest 8,848 m (29,029 ft), Himalaya, Nepal, Asia.

Could a mountain as high as Mars鈥檚 Olympus Mons be possible on Earth?

2FERAXY Crowded groups of people crossing the street at Times Square during rush hour

How and when did the North American accent develop? (part 2)

Someone throwing rubbish in bin. rubbish bin. Trash.

This week鈥檚 new questions

Bernini statue detail of Gange with Latin words engraved on a wall Roman Capitol; Shutterstock ID 131482886; purchase_order: -; job: -; client: -; other: -

Do we actually know how the ancient Romans pronounced Latin words?

Hot dogs closeup; Shutterstock ID 373080193; purchase_order: -; job: -; client: -; other: -

How much tea must I drink to counter the effect of eating a hot dog?

Our readers say just two cups of tea a day would be enough to overcome the negative effects of a twice-weekly hot dog habit

Could land-dwelling octopuses develop technology? (part 2)

This week鈥檚 new questions

If an ant or bee ends up far from its colony, what will happen to it?

Travelling by car, why does it feel I am going uphill when I go north?