91av

91av

More from 91av

Explore the latest news, articles and features

Space

Live: Watch today’s total solar eclipse

Comment

The mathematics of balloon animals

At what point does my family tree stop doubling and start decreasing?

How does my energy use differ if I walk, jog or run for 1 kilometre?

Why don’t dogs look up when a low-flying plane passes overhead? part 2

This week’s new questions

Environment

We must adapt to climate change while also tackling the root cause

2Y4D845 Dartmoor, Devon, UK. 17th Sep, 2024. Full Harvest Supermoon shines bright over Hay Tor on Dartmoor, Devon, UK. The September full Moon is often called the Harvest Moon due to its association with autumn harvests in the Northern Hemisphere. Credit: nidpor/Alamy Live News

What changes will occur on Earth as the moon moves further away?

H99WWH Low Angled portrait of a German Shorthaired Pointer dog.

Why don’t dogs look up when a low-flying plane passes overhead?

PF9N2P Honeybee stick on a window

Are flies following a strategy when they keep hitting windows? Part 3

B0729K Television and cartoon characters, depicted in the form of toy dolls, making up a window display.. Image shot 03/2008. Exact date unknown.

This week’s new questions

Comment

A handy guide to the science of super-long fingernails